77623316 has 12 divisors (see below), whose sum is σ = 137043732. Its totient is φ = 38467968.

The previous prime is 77623277. The next prime is 77623327. The reversal of 77623316 is 61332677.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29376400 + 48246916 = 5420^2 + 6946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85415 + ... + 86318.

It is an arithmetic number, because the mean of its divisors is an integer number (11420311).

Almost surely, 2^77623316 is an apocalyptic number.

It is an amenable number.

77623316 is a deficient number, since it is larger than the sum of its proper divisors (59420416).

77623316 is a wasteful number, since it uses less digits than its factorization.

77623316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171850 (or 171848 counting only the distinct ones).

The product of its digits is 31752, while the sum is 35.

The square root of 77623316 is about 8810.4095251015. The cubic root of 77623316 is about 426.5769622070.

The spelling of 77623316 in words is "seventy-seven million, six hundred twenty-three thousand, three hundred sixteen".