87435620 has 24 divisors (see below), whose sum is σ = 185942400. Its totient is φ = 34530912.

The previous prime is 87435619. The next prime is 87435653. The reversal of 87435620 is 2653478.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26090 + ... + 29249.

It is an arithmetic number, because the mean of its divisors is an integer number (7747600).

Almost surely, 2^87435620 is an apocalyptic number.

It is an amenable number.

87435620 is an abundant number, since it is smaller than the sum of its proper divisors (98506780).

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

87435620 is a wasteful number, since it uses less digits than its factorization.

87435620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55427 (or 55425 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 87435620 is about 9350.7015779566. The cubic root of 87435620 is about 443.8430917569.

The spelling of 87435620 in words is "eighty-seven million, four hundred thirty-five thousand, six hundred twenty".