36783972 has 18 divisors (see below), whose sum is σ = 92981798. Its totient is φ = 12261312.

The previous prime is 36783931. The next prime is 36783973. The reversal of 36783972 is 27938763.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20575296 + 16208676 = 4536^2 + 4026^2 .

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

It is not an unprimeable number, because it can be changed into a prime (36783973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510853 + ... + 510924.

Almost surely, 2^36783972 is an apocalyptic number.

It is an amenable number.

36783972 is an abundant number, since it is smaller than the sum of its proper divisors (56197826).

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

36783972 is a wasteful number, since it uses less digits than its factorization.

36783972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021787 (or 1021782 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 36783972 is about 6064.9791425857. The cubic root of 36783972 is about 332.5724024968.

The spelling of 36783972 in words is "thirty-six million, seven hundred eighty-three thousand, nine hundred seventy-two".