870077961 has 24 divisors (see below), whose sum is σ = 1312985856. Its totient is φ = 554562720.

The previous prime is 870077941. The next prime is 870077987. The reversal of 870077961 is 169770078.

It is a happy number.

870077961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 870077961 - 2⁹ = 870077449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (870077921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4371 + ... + 41943.

It is an arithmetic number, because the mean of its divisors is an integer number (54707744).

Almost surely, 2^870077961 is an apocalyptic number.

It is an amenable number.

870077961 is a deficient number, since it is larger than the sum of its proper divisors (442907895).

870077961 is a wasteful number, since it uses less digits than its factorization.

870077961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37693 (or 37690 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 870077961 is about 29497.0839406203. The cubic root of 870077961 is about 954.6687852989.

The spelling of 870077961 in words is "eight hundred seventy million, seventy-seven thousand, nine hundred sixty-one".