61397304 has 32 divisors (see below), whose sum is σ = 160168320. Its totient is φ = 19575776.

The previous prime is 61397269. The next prime is 61397311. The reversal of 61397304 is 40379316.

61397304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55062 + ... + 56165.

It is an arithmetic number, because the mean of its divisors is an integer number (5005260).

Almost surely, 2^61397304 is an apocalyptic number.

It is an amenable number.

61397304 is an abundant number, since it is smaller than the sum of its proper divisors (98771016).

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

61397304 is a wasteful number, since it uses less digits than its factorization.

61397304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111259 (or 111255 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 61397304 is about 7835.6431771744. The cubic root of 61397304 is about 394.5025067268.

The spelling of 61397304 in words is "sixty-one million, three hundred ninety-seven thousand, three hundred four".