87850872 has 32 divisors (see below), whose sum is σ = 244030800. Its totient is φ = 29283552.

The previous prime is 87850871. The next prime is 87850879. The reversal of 87850872 is 27805878.

It is a happy number.

87850872 is a `hidden beast` number, since 8 + 78 + 508 + 72 = 666.

It is a super-2 number, since 2×87850872² = 15435551422320768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87850871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203143 + ... + 203574.

Almost surely, 2^87850872 is an apocalyptic number.

It is an amenable number.

87850872 is an abundant number, since it is smaller than the sum of its proper divisors (156179928).

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

87850872 is a wasteful number, since it uses less digits than its factorization.

87850872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406732 (or 406722 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 87850872 is about 9372.8796002083. The cubic root of 87850872 is about 444.5446202154.

The spelling of 87850872 in words is "eighty-seven million, eight hundred fifty thousand, eight hundred seventy-two".