87453918 has 20 divisors (see below), whose sum is σ = 195961920. Its totient is φ = 29151252.

The previous prime is 87453907. The next prime is 87453923. The reversal of 87453918 is 81935478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 269758 + ... + 270081.

It is an arithmetic number, because the mean of its divisors is an integer number (9798096).

Almost surely, 2^87453918 is an apocalyptic number.

87453918 is an abundant number, since it is smaller than the sum of its proper divisors (108508002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87453918 is a wasteful number, since it uses less digits than its factorization.

87453918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539853 (or 539844 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 87453918 is about 9351.6799560293. The cubic root of 87453918 is about 443.8740512004.

The spelling of 87453918 in words is "eighty-seven million, four hundred fifty-three thousand, nine hundred eighteen".