87890296 has 16 divisors (see below), whose sum is σ = 177471000. Its totient is φ = 40564704.

The previous prime is 87890279. The next prime is 87890311. The reversal of 87890296 is 69209878.

It is a happy number.

It is a congruent number.

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, 422446 + ... + 422653.

Almost surely, 2^87890296 is an apocalyptic number.

It is an amenable number.

87890296 is an abundant number, since it is smaller than the sum of its proper divisors (89580704).

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

87890296 is a wasteful number, since it uses less digits than its factorization.

87890296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845118 (or 845114 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 87890296 is about 9374.9824533169. The cubic root of 87890296 is about 444.6111082906.

The spelling of 87890296 in words is "eighty-seven million, eight hundred ninety thousand, two hundred ninety-six".