87481612 has 6 divisors (see below), whose sum is σ = 153092828. Its totient is φ = 43740804.

The previous prime is 87481607. The next prime is 87481619. The reversal of 87481612 is 21618478.

It is not an unprimeable number, because it can be changed into a prime (87481619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10935198 + ... + 10935205.

Almost surely, 2^87481612 is an apocalyptic number.

It is an amenable number.

87481612 is a deficient number, since it is larger than the sum of its proper divisors (65611216).

87481612 is a wasteful number, since it uses less digits than its factorization.

87481612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870407 (or 21870405 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 87481612 is about 9353.1605353485. The cubic root of 87481612 is about 443.9209000663.

The spelling of 87481612 in words is "eighty-seven million, four hundred eighty-one thousand, six hundred twelve".