36778061 has 8 divisors (see below), whose sum is σ = 38328120. Its totient is φ = 35246848.

The previous prime is 36778043. The next prime is 36778067. The reversal of 36778061 is 16087763.

It can be written as a sum of positive squares in 4 ways, for example, as 1196836 + 35581225 = 1094^2 + 5965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36778061 - 2¹⁸ = 36515917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36778067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656 + ... + 8601.

It is an arithmetic number, because the mean of its divisors is an integer number (4791015).

Almost surely, 2^36778061 is an apocalyptic number.

It is an amenable number.

36778061 is a deficient number, since it is larger than the sum of its proper divisors (1550059).

36778061 is a wasteful number, since it uses less digits than its factorization.

36778061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 36778061 is about 6064.4918171270. The cubic root of 36778061 is about 332.5545873029.

The spelling of 36778061 in words is "thirty-six million, seven hundred seventy-eight thousand, sixty-one".