87478744 has 16 divisors (see below), whose sum is σ = 164175120. Its totient is φ = 43698720.

The previous prime is 87478739. The next prime is 87478799. The reversal of 87478744 is 44787478.

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, 5314 + ... + 14254.

It is an arithmetic number, because the mean of its divisors is an integer number (10260945).

Almost surely, 2^87478744 is an apocalyptic number.

It is an amenable number.

87478744 is a deficient number, since it is larger than the sum of its proper divisors (76696376).

87478744 is a wasteful number, since it uses less digits than its factorization.

87478744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170 (or 10166 counting only the distinct ones).

The product of its digits is 1404928, while the sum is 49.

The square root of 87478744 is about 9353.0072169330. The cubic root of 87478744 is about 443.9160488409.

The spelling of 87478744 in words is "eighty-seven million, four hundred seventy-eight thousand, seven hundred forty-four".