87923412 has 72 divisors (see below), whose sum is σ = 235522560. Its totient is φ = 27578880.

The previous prime is 87923399. The next prime is 87923441. The reversal of 87923412 is 21432978.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130308 + ... + 130980.

Almost surely, 2^87923412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87923412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117761280).

87923412 is an abundant number, since it is smaller than the sum of its proper divisors (147599148).

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

87923412 is a wasteful number, since it uses less digits than its factorization.

87923412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 888 counting only the distinct ones).

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

The square root of 87923412 is about 9376.7484769508. The cubic root of 87923412 is about 444.6669426405. Note that the first 3 decimals are identical.

The spelling of 87923412 in words is "eighty-seven million, nine hundred twenty-three thousand, four hundred twelve".