249852987 has 12 divisors (see below), whose sum is σ = 368578080. Its totient is φ = 163024368.

The previous prime is 249852947. The next prime is 249852989. The reversal of 249852987 is 789258942.

249852987 is a `hidden beast` number, since 24 + 98 + 529 + 8 + 7 = 666.

It is not a de Polignac number, because 249852987 - 2¹⁶ = 249787451 is a prime.

It is a super-2 number, since 2×249852987² = 124853030225644338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (249852989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294912 + ... + 295757.

It is an arithmetic number, because the mean of its divisors is an integer number (30714840).

Almost surely, 2^249852987 is an apocalyptic number.

249852987 is a deficient number, since it is larger than the sum of its proper divisors (118725093).

249852987 is a wasteful number, since it uses less digits than its factorization.

249852987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590722 (or 590719 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 249852987 is about 15806.7386579269. The cubic root of 249852987 is about 629.8370175525.

It can be divided in two parts, 24985 and 2987, that added together give a palindrome (27972).

The spelling of 249852987 in words is "two hundred forty-nine million, eight hundred fifty-two thousand, nine hundred eighty-seven".