87725156 has 6 divisors (see below), whose sum is σ = 153519030. Its totient is φ = 43862576.

The previous prime is 87725119. The next prime is 87725161. The reversal of 87725156 is 65152778.

It can be written as a sum of positive squares in only one way, i.e., 62884900 + 24840256 = 7930^2 + 4984^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10965641 + ... + 10965648.

It is an arithmetic number, because the mean of its divisors is an integer number (25586505).

Almost surely, 2^87725156 is an apocalyptic number.

It is an amenable number.

87725156 is a deficient number, since it is larger than the sum of its proper divisors (65793874).

87725156 is a wasteful number, since it uses less digits than its factorization.

87725156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931293 (or 21931291 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 87725156 is about 9366.1708291062. The cubic root of 87725156 is about 444.3324688370.

The spelling of 87725156 in words is "eighty-seven million, seven hundred twenty-five thousand, one hundred fifty-six".