87748971 has 8 divisors (see below), whose sum is σ = 118646784. Its totient is φ = 57675240.

The previous prime is 87748949. The next prime is 87749009. The reversal of 87748971 is 17984778.

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

It is not a de Polignac number, because 87748971 - 2¹⁵ = 87716203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87748471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205771 + ... + 206196.

It is an arithmetic number, because the mean of its divisors is an integer number (14830848).

Almost surely, 2^87748971 is an apocalyptic number.

87748971 is a deficient number, since it is larger than the sum of its proper divisors (30897813).

87748971 is a wasteful number, since it uses less digits than its factorization.

87748971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412041.

The product of its digits is 790272, while the sum is 51.

The square root of 87748971 is about 9367.4420734798. The cubic root of 87748971 is about 444.3726732694.

The spelling of 87748971 in words is "eighty-seven million, seven hundred forty-eight thousand, nine hundred seventy-one".