77651056 has 40 divisors (see below), whose sum is σ = 172355040. Its totient is φ = 33199104.

The previous prime is 77651047. The next prime is 77651069. The reversal of 77651056 is 65015677.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90180 + ... + 91036.

It is an arithmetic number, because the mean of its divisors is an integer number (4308876).

Almost surely, 2^77651056 is an apocalyptic number.

It is an amenable number.

77651056 is an abundant number, since it is smaller than the sum of its proper divisors (94703984).

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

77651056 is a wasteful number, since it uses less digits than its factorization.

77651056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1675 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 77651056 is about 8811.9836586321. The cubic root of 77651056 is about 426.6277709769.

The spelling of 77651056 in words is "seventy-seven million, six hundred fifty-one thousand, fifty-six".