87725378 has 16 divisors (see below), whose sum is σ = 143828160. Its totient is φ = 39883536.

The previous prime is 87725357. The next prime is 87725387. The reversal of 87725378 is 87352778.

It is a happy 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, 23438 + ... + 26921.

It is an arithmetic number, because the mean of its divisors is an integer number (8989260).

Almost surely, 2^87725378 is an apocalyptic number.

87725378 is a deficient number, since it is larger than the sum of its proper divisors (56102782).

87725378 is a wasteful number, since it uses less digits than its factorization.

87725378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50441.

The product of its digits is 658560, while the sum is 47.

The square root of 87725378 is about 9366.1826802599. The cubic root of 87725378 is about 444.3328436505.

The spelling of 87725378 in words is "eighty-seven million, seven hundred twenty-five thousand, three hundred seventy-eight".