87725782 has 16 divisors (see below), whose sum is σ = 135055872. Its totient is φ = 42716520.

The previous prime is 87725777. The next prime is 87725839. The reversal of 87725782 is 28752778.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17623 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (8440992).

Almost surely, 2^87725782 is an apocalyptic number.

87725782 is a deficient number, since it is larger than the sum of its proper divisors (47330090).

87725782 is a wasteful number, since it uses less digits than its factorization.

87725782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683.

The product of its digits is 439040, while the sum is 46.

The square root of 87725782 is about 9366.2042471857. The cubic root of 87725782 is about 444.3335257419. Note that the first 3 decimals are identical.

The spelling of 87725782 in words is "eighty-seven million, seven hundred twenty-five thousand, seven hundred eighty-two".