36978516 has 18 divisors (see below), whose sum is σ = 93473562. Its totient is φ = 12326160.

The previous prime is 36978511. The next prime is 36978517. The reversal of 36978516 is 61587963.

It is a happy number.

36978516 is a `hidden beast` number, since 3 + 69 + 78 + 516 = 666.

36978516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 21344400 + 15634116 = 4620^2 + 3954^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36978511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 513555 + ... + 513626.

Almost surely, 2^36978516 is an apocalyptic number.

36978516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

36978516 is an abundant number, since it is smaller than the sum of its proper divisors (56495046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36978516 is a wasteful number, since it uses less digits than its factorization.

36978516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027191 (or 1027186 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 36978516 is about 6080.9962999495. The cubic root of 36978516 is about 333.1576776737.

Adding to 36978516 its sum of digits (45), we get a square (36978561 = 6081²).

The spelling of 36978516 in words is "thirty-six million, nine hundred seventy-eight thousand, five hundred sixteen".