77057027 has 4 divisors (see below), whose sum is σ = 81112680. Its totient is φ = 73001376.

The previous prime is 77057023. The next prime is 77057059. The reversal of 77057027 is 72075077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72075077 = 23 ⋅3133699.

It is a cyclic number.

It is not a de Polignac number, because 77057027 - 2² = 77057023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77057023) 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, 2027798 + ... + 2027835.

It is an arithmetic number, because the mean of its divisors is an integer number (20278170).

Almost surely, 2^77057027 is an apocalyptic number.

77057027 is a deficient number, since it is larger than the sum of its proper divisors (4055653).

77057027 is a wasteful number, since it uses less digits than its factorization.

77057027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055652.

The product of its (nonzero) digits is 24010, while the sum is 35.

The square root of 77057027 is about 8778.2132008741. The cubic root of 77057027 is about 425.5370870687.

The spelling of 77057027 in words is "seventy-seven million, fifty-seven thousand, twenty-seven".