87438616 has 16 divisors (see below), whose sum is σ = 173591640. Its totient is φ = 41147520.

The previous prime is 87438607. The next prime is 87438619. The reversal of 87438616 is 61683478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87438619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321330 + ... + 321601.

Almost surely, 2^87438616 is an apocalyptic number.

It is an amenable number.

87438616 is a deficient number, since it is larger than the sum of its proper divisors (86153024).

87438616 is a wasteful number, since it uses less digits than its factorization.

87438616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642954 (or 642950 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 87438616 is about 9350.8617784673. The cubic root of 87438616 is about 443.8481611581.

The spelling of 87438616 in words is "eighty-seven million, four hundred thirty-eight thousand, six hundred sixteen".