87434572 has 6 divisors (see below), whose sum is σ = 153010508. Its totient is φ = 43717284.

The previous prime is 87434551. The next prime is 87434573. The reversal of 87434572 is 27543478.

It is not an unprimeable number, because it can be changed into a prime (87434573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10929318 + ... + 10929325.

Almost surely, 2^87434572 is an apocalyptic number.

It is an amenable number.

87434572 is a deficient number, since it is larger than the sum of its proper divisors (65575936).

87434572 is a wasteful number, since it uses less digits than its factorization.

87434572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21858647 (or 21858645 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 87434572 is about 9350.6455392128. The cubic root of 87434572 is about 443.8413184544.

The spelling of 87434572 in words is "eighty-seven million, four hundred thirty-four thousand, five hundred seventy-two".