87099902 has 16 divisors (see below), whose sum is σ = 132679680. Its totient is φ = 42878808.

The previous prime is 87099899. The next prime is 87099913. The reversal of 87099902 is 20999078.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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, 34073 + ... + 36539.

It is an arithmetic number, because the mean of its divisors is an integer number (8292480).

Almost surely, 2^87099902 is an apocalyptic number.

87099902 is a deficient number, since it is larger than the sum of its proper divisors (45579778).

87099902 is a wasteful number, since it uses less digits than its factorization.

87099902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 87099902 is about 9332.7328259197. The cubic root of 87099902 is about 443.2743028545.

The spelling of 87099902 in words is "eighty-seven million, ninety-nine thousand, nine hundred two".