249672969 has 64 divisors (see below), whose sum is σ = 458106880. Its totient is φ = 130870080.

The previous prime is 249672967. The next prime is 249672971. The reversal of 249672969 is 969276942.

249672969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (249672967) and next prime (249672971).

It is not a de Polignac number, because 249672969 - 2¹ = 249672967 is a prime.

It is a super-2 number, since 2×249672969² = 124673182898549922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249672961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 754134 + ... + 754464.

It is an arithmetic number, because the mean of its divisors is an integer number (7157920).

Almost surely, 2^249672969 is an apocalyptic number.

It is an amenable number.

249672969 is a deficient number, since it is larger than the sum of its proper divisors (208433911).

249672969 is a wasteful number, since it uses less digits than its factorization.

249672969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 661 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 249672969 is about 15801.0432883402. The cubic root of 249672969 is about 629.6857162574.

The spelling of 249672969 in words is "two hundred forty-nine million, six hundred seventy-two thousand, nine hundred sixty-nine".