87481574 has 8 divisors (see below), whose sum is σ = 135747360. Its totient is φ = 42232456.

The previous prime is 87481561. The next prime is 87481607. The reversal of 87481574 is 47518478.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754094 + ... + 754209.

It is an arithmetic number, because the mean of its divisors is an integer number (16968420).

Almost surely, 2^87481574 is an apocalyptic number.

87481574 is a deficient number, since it is larger than the sum of its proper divisors (48265786).

87481574 is a wasteful number, since it uses less digits than its factorization.

87481574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508334.

The product of its digits is 250880, while the sum is 44.

The square root of 87481574 is about 9353.1585039493. The cubic root of 87481574 is about 443.9208357900.

The spelling of 87481574 in words is "eighty-seven million, four hundred eighty-one thousand, five hundred seventy-four".