87309996 has 12 divisors (see below), whose sum is σ = 203723352. Its totient is φ = 29103328.

The previous prime is 87309983. The next prime is 87310007. The reversal of 87309996 is 69990378.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637905 + ... + 3637928.

It is an arithmetic number, because the mean of its divisors is an integer number (16976946).

Almost surely, 2^87309996 is an apocalyptic number.

It is an amenable number.

87309996 is an abundant number, since it is smaller than the sum of its proper divisors (116413356).

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

87309996 is a wasteful number, since it uses less digits than its factorization.

87309996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275840 (or 7275838 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 87309996 is about 9343.9818064891. The cubic root of 87309996 is about 443.6304245426.

The spelling of 87309996 in words is "eighty-seven million, three hundred nine thousand, nine hundred ninety-six".