85676977 has 2 divisors, whose sum is σ = 85676978. Its totient is φ = 85676976.

The previous prime is 85676971. The next prime is 85676993. The reversal of 85676977 is 77967658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51208336 + 34468641 = 7156^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 85676977 - 2⁷ = 85676849 is a prime.

It is not a weakly prime, because it can be changed into another prime (85676971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42838488 + 42838489.

It is an arithmetic number, because the mean of its divisors is an integer number (42838489).

Almost surely, 2^85676977 is an apocalyptic number.

It is an amenable number.

85676977 is a deficient number, since it is larger than the sum of its proper divisors (1).

85676977 is an equidigital number, since it uses as much as digits as its factorization.

85676977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4445280, while the sum is 55.

The square root of 85676977 is about 9256.1858775632. The cubic root of 85676977 is about 440.8471574724.

The spelling of 85676977 in words is "eighty-five million, six hundred seventy-six thousand, nine hundred seventy-seven".