87792478 has 8 divisors (see below), whose sum is σ = 131729472. Its totient is φ = 43882656.

The previous prime is 87792451. The next prime is 87792479. The reversal of 87792478 is 87429778.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87792479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6451 + ... + 14737.

It is an arithmetic number, because the mean of its divisors is an integer number (16466184).

Almost surely, 2^87792478 is an apocalyptic number.

87792478 is a deficient number, since it is larger than the sum of its proper divisors (43936994).

87792478 is a wasteful number, since it uses less digits than its factorization.

87792478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13586.

The product of its digits is 1580544, while the sum is 52.

The square root of 87792478 is about 9369.7640311803. The cubic root of 87792478 is about 444.4461029151.

The spelling of 87792478 in words is "eighty-seven million, seven hundred ninety-two thousand, four hundred seventy-eight".