77270977 has 8 divisors (see below), whose sum is σ = 88387200. Its totient is φ = 66174144.

The previous prime is 77270951. The next prime is 77270983. The reversal of 77270977 is 77907277.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77270977 - 2⁷ = 77270849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77270987) by changing a digit.

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, 5049 + ... + 13417.

It is an arithmetic number, because the mean of its divisors is an integer number (11048400).

Almost surely, 2^77270977 is an apocalyptic number.

It is an amenable number.

77270977 is a deficient number, since it is larger than the sum of its proper divisors (11116223).

77270977 is a wasteful number, since it uses less digits than its factorization.

77270977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9695.

The product of its (nonzero) digits is 302526, while the sum is 46.

The square root of 77270977 is about 8790.3911744586. The cubic root of 77270977 is about 425.9305598498.

The spelling of 77270977 in words is "seventy-seven million, two hundred seventy thousand, nine hundred seventy-seven".