87246728 has 32 divisors (see below), whose sum is σ = 171806400. Its totient is φ = 41456448.

The previous prime is 87246721. The next prime is 87246749. The reversal of 87246728 is 82764278.

It is a super-2 number, since 2×87246728² = 15223983093411968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87246721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28538 + ... + 31446.

It is an arithmetic number, because the mean of its divisors is an integer number (5368950).

Almost surely, 2^87246728 is an apocalyptic number.

It is an amenable number.

87246728 is a deficient number, since it is larger than the sum of its proper divisors (84559672).

87246728 is a wasteful number, since it uses less digits than its factorization.

87246728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101 (or 3097 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 87246728 is about 9340.5956983482. The cubic root of 87246728 is about 443.5232417330.

The spelling of 87246728 in words is "eighty-seven million, two hundred forty-six thousand, seven hundred twenty-eight".