87143716 has 36 divisors (see below), whose sum is σ = 168417900. Its totient is φ = 39424000.

The previous prime is 87143699. The next prime is 87143729. The reversal of 87143716 is 61734178.

It can be written as a sum of positive squares in 2 ways, for example, as 74753316 + 12390400 = 8646^2 + 3520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193860 + ... + 194308.

It is an arithmetic number, because the mean of its divisors is an integer number (4678275).

Almost surely, 2^87143716 is an apocalyptic number.

It is an amenable number.

87143716 is a deficient number, since it is larger than the sum of its proper divisors (81274184).

87143716 is a wasteful number, since it uses less digits than its factorization.

87143716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 863 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 87143716 is about 9335.0798603976. The cubic root of 87143716 is about 443.3486173838.

The spelling of 87143716 in words is "eighty-seven million, one hundred forty-three thousand, seven hundred sixteen".