872977287 has 48 divisors (see below), whose sum is σ = 1534968960. Its totient is φ = 436218048.

The previous prime is 872977277. The next prime is 872977321. The reversal of 872977287 is 782779278.

It is not a de Polignac number, because 872977287 - 2⁷ = 872977159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872977277) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24288 + ... + 48330.

It is an arithmetic number, because the mean of its divisors is an integer number (31978520).

Almost surely, 2^872977287 is an apocalyptic number.

872977287 is a deficient number, since it is larger than the sum of its proper divisors (661991673).

872977287 is a wasteful number, since it uses less digits than its factorization.

872977287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24092 (or 24085 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 57.

The square root of 872977287 is about 29546.1890435975. The cubic root of 872977287 is about 955.7280111705.

The spelling of 872977287 in words is "eight hundred seventy-two million, nine hundred seventy-seven thousand, two hundred eighty-seven".