87427692 has 144 divisors (see below), whose sum is σ = 261031680. Its totient is φ = 24393600.

The previous prime is 87427679. The next prime is 87427693. The reversal of 87427692 is 29672478.

It is not an unprimeable number, because it can be changed into a prime (87427693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263967 + ... + 264297.

It is an arithmetic number, because the mean of its divisors is an integer number (1812720).

Almost surely, 2^87427692 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 87427692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130515840).

87427692 is an abundant number, since it is smaller than the sum of its proper divisors (173603988).

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

87427692 is a wasteful number, since it uses less digits than its factorization.

87427692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 399 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 87427692 is about 9350.2776429366. The cubic root of 87427692 is about 443.8296765744.

The spelling of 87427692 in words is "eighty-seven million, four hundred twenty-seven thousand, six hundred ninety-two".