87499478 has 16 divisors (see below), whose sum is σ = 145609920. Its totient is φ = 39097800.

The previous prime is 87499441. The next prime is 87499481.

87499478 is nontrivially palindromic in base 10.

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, 32408 + ... + 35003.

It is an arithmetic number, because the mean of its divisors is an integer number (9100620).

Almost surely, 2^87499478 is an apocalyptic number.

87499478 is a deficient number, since it is larger than the sum of its proper divisors (58110442).

87499478 is a wasteful number, since it uses less digits than its factorization.

87499478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67483.

The product of its digits is 4064256, while the sum is 56.

The square root of 87499478 is about 9354.1155648196. The cubic root of 87499478 is about 443.9511180393.

The spelling of 87499478 in words is "eighty-seven million, four hundred ninety-nine thousand, four hundred seventy-eight".