77604738 has 8 divisors (see below), whose sum is σ = 155209488. Its totient is φ = 25868244.

The previous prime is 77604727. The next prime is 77604739. The reversal of 77604738 is 83740677.

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

77604738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 77604738.

It is not an unprimeable number, because it can be changed into a prime (77604739) 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, 6467056 + ... + 6467067.

It is an arithmetic number, because the mean of its divisors is an integer number (19401186).

Almost surely, 2^77604738 is an apocalyptic number.

77604738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

77604738 is a wasteful number, since it uses less digits than its factorization.

77604738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934128.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 77604738 is about 8809.3551409851. The cubic root of 77604738 is about 426.5429278492.

The spelling of 77604738 in words is "seventy-seven million, six hundred four thousand, seven hundred thirty-eight".