264987 has 6 divisors (see below), whose sum is σ = 382772. Its totient is φ = 176652.

The previous prime is 264977. The next prime is 264991. The reversal of 264987 is 789462.

264987 is a `hidden beast` number, since 2 + 649 + 8 + 7 = 666.

It is not a de Polignac number, because 264987 - 2⁸ = 264731 is a prime.

It is a super-2 number, since 2×264987² = 140436220338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14713 + ... + 14730.

2²⁶⁴⁹⁸⁷ is an apocalyptic number.

264987 is a deficient number, since it is larger than the sum of its proper divisors (117785).

264987 is a wasteful number, since it uses less digits than its factorization.

264987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29449 (or 29446 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 264987 is about 514.7688801783. The cubic root of 264987 is about 64.2305325407.

The spelling of 264987 in words is "two hundred sixty-four thousand, nine hundred eighty-seven".