77950568 has 32 divisors (see below), whose sum is σ = 149468160. Its totient is φ = 38102400.

The previous prime is 77950549. The next prime is 77950571. The reversal of 77950568 is 86505977.

It is a happy 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, 73643 + ... + 74693.

It is an arithmetic number, because the mean of its divisors is an integer number (4670880).

Almost surely, 2^77950568 is an apocalyptic number.

It is an amenable number.

77950568 is a deficient number, since it is larger than the sum of its proper divisors (71517592).

77950568 is a wasteful number, since it uses less digits than its factorization.

77950568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1253 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 77950568 is about 8828.9618868812. The cubic root of 77950568 is about 427.1755900944.

The spelling of 77950568 in words is "seventy-seven million, nine hundred fifty thousand, five hundred sixty-eight".