61764904 has 16 divisors (see below), whose sum is σ = 115895520. Its totient is φ = 30859440.

The previous prime is 61764887. The next prime is 61764907. The reversal of 61764904 is 40946716.

It is a super-2 number, since 2×61764904² = 7629806732258432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61764907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15237 + ... + 18859.

It is an arithmetic number, because the mean of its divisors is an integer number (7243470).

Almost surely, 2^61764904 is an apocalyptic number.

It is an amenable number.

61764904 is a deficient number, since it is larger than the sum of its proper divisors (54130616).

61764904 is a wasteful number, since it uses less digits than its factorization.

61764904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760 (or 5756 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 61764904 is about 7859.0650843469. The cubic root of 61764904 is about 395.2882668486.

The spelling of 61764904 in words is "sixty-one million, seven hundred sixty-four thousand, nine hundred four".