977065087 has 4 divisors (see below), whose sum is σ = 991648216. Its totient is φ = 962481960.

The previous prime is 977065073. The next prime is 977065091. The reversal of 977065087 is 780560779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780560779 = 1499 ⋅520721.

It is a cyclic number.

It is not a de Polignac number, because 977065087 - 2²⁷ = 842847359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 977065087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977065007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7291464 + ... + 7291597.

It is an arithmetic number, because the mean of its divisors is an integer number (247912054).

Almost surely, 2^977065087 is an apocalyptic number.

977065087 is a deficient number, since it is larger than the sum of its proper divisors (14583129).

977065087 is a wasteful number, since it uses less digits than its factorization.

977065087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14583128.

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 977065087 is about 31258.0403576424. The cubic root of 977065087 is about 992.2958271458.

The spelling of 977065087 in words is "nine hundred seventy-seven million, sixty-five thousand, eighty-seven".