287676369 has 24 divisors (see below), whose sum is σ = 429092352. Its totient is φ = 185582880.

The previous prime is 287676307. The next prime is 287676437. The reversal of 287676369 is 963676782.

It is not a de Polignac number, because 287676369 - 2⁸ = 287676113 is a prime.

It is a super-2 number, since 2×287676369² = 165515386562048322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (287676269) 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, 61342 + ... + 65864.

It is an arithmetic number, because the mean of its divisors is an integer number (17878848).

Almost surely, 2^287676369 is an apocalyptic number.

It is an amenable number.

287676369 is a deficient number, since it is larger than the sum of its proper divisors (141415983).

287676369 is a wasteful number, since it uses less digits than its factorization.

287676369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757 (or 4754 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The square root of 287676369 is about 16961.0249985076. The cubic root of 287676369 is about 660.1379945617.

The spelling of 287676369 in words is "two hundred eighty-seven million, six hundred seventy-six thousand, three hundred sixty-nine".