87254244 has 72 divisors (see below), whose sum is σ = 274991808. Its totient is φ = 22662720.

The previous prime is 87254239. The next prime is 87254257. The reversal of 87254244 is 44245278.

87254244 is a `hidden beast` number, since 8 + 72 + 542 + 44 = 666.

It is a super-2 number, since 2×87254244² = 15226606192023072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 87254199 and 87254208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12967 + ... + 18510.

Almost surely, 2^87254244 is an apocalyptic number.

87254244 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87254244 is an abundant number, since it is smaller than the sum of its proper divisors (187737564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87254244 is a wasteful number, since it uses less digits than its factorization.

87254244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31505 (or 31500 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 87254244 is about 9340.9980194838. The cubic root of 87254244 is about 443.5359773585.

The spelling of 87254244 in words is "eighty-seven million, two hundred fifty-four thousand, two hundred forty-four".