77064946 has 24 divisors (see below), whose sum is σ = 138813696. Its totient is φ = 31961160.

The previous prime is 77064943. The next prime is 77064947. The reversal of 77064946 is 64946077.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77064943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9646 + ... + 15721.

It is an arithmetic number, because the mean of its divisors is an integer number (5783904).

Almost surely, 2^77064946 is an apocalyptic number.

77064946 is a deficient number, since it is larger than the sum of its proper divisors (61748750).

77064946 is a wasteful number, since it uses less digits than its factorization.

77064946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25414 (or 25407 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 77064946 is about 8778.6642491896. The cubic root of 77064946 is about 425.5516637742.

The spelling of 77064946 in words is "seventy-seven million, sixty-four thousand, nine hundred forty-six".