87143372 has 6 divisors (see below), whose sum is σ = 152500908. Its totient is φ = 43571684.

The previous prime is 87143351. The next prime is 87143401. The reversal of 87143372 is 27334178.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10892918 + ... + 10892925.

It is an arithmetic number, because the mean of its divisors is an integer number (25416818).

Almost surely, 2^87143372 is an apocalyptic number.

It is an amenable number.

87143372 is a deficient number, since it is larger than the sum of its proper divisors (65357536).

87143372 is a wasteful number, since it uses less digits than its factorization.

87143372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21785847 (or 21785845 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 87143372 is about 9335.0614352558. The cubic root of 87143372 is about 443.3480340098.

The spelling of 87143372 in words is "eighty-seven million, one hundred forty-three thousand, three hundred seventy-two".