61486904 has 32 divisors (see below), whose sum is σ = 120510720. Its totient is φ = 29381856.

The previous prime is 61486903. The next prime is 61486913. The reversal of 61486904 is 40968416.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61486903) 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, 14267 + ... + 18069.

It is an arithmetic number, because the mean of its divisors is an integer number (3765960).

Almost surely, 2^61486904 is an apocalyptic number.

It is an amenable number.

61486904 is a deficient number, since it is larger than the sum of its proper divisors (59023816).

61486904 is a wasteful number, since it uses less digits than its factorization.

61486904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899 (or 3895 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 61486904 is about 7841.3585557606. The cubic root of 61486904 is about 394.6943188614.

The spelling of 61486904 in words is "sixty-one million, four hundred eighty-six thousand, nine hundred four".