87422872 has 16 divisors (see below), whose sum is σ = 164019240. Its totient is φ = 43684416.

The previous prime is 87422861. The next prime is 87422879. The reversal of 87422872 is 27822478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87422879) 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, 19428 + ... + 23500.

Almost surely, 2^87422872 is an apocalyptic number.

It is an amenable number.

87422872 is a deficient number, since it is larger than the sum of its proper divisors (76596368).

87422872 is a wasteful number, since it uses less digits than its factorization.

87422872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762 (or 6758 counting only the distinct ones).

The product of its digits is 100352, while the sum is 40.

The square root of 87422872 is about 9350.0198930270. The cubic root of 87422872 is about 443.8215201261.

The spelling of 87422872 in words is "eighty-seven million, four hundred twenty-two thousand, eight hundred seventy-two".