38871915 has 8 divisors (see below), whose sum is σ = 62195088. Its totient is φ = 20731680.

The previous prime is 38871901. The next prime is 38871947. The reversal of 38871915 is 51917883.

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

It is not a de Polignac number, because 38871915 - 2⁵ = 38871883 is a prime.

It is a super-2 number, since 2×38871915² = 3022051551534450, which contains 22 as substring.

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, 1295716 + ... + 1295745.

It is an arithmetic number, because the mean of its divisors is an integer number (7774386).

Almost surely, 2^38871915 is an apocalyptic number.

38871915 is a deficient number, since it is larger than the sum of its proper divisors (23323173).

38871915 is a wasteful number, since it uses less digits than its factorization.

38871915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591469.

The product of its digits is 60480, while the sum is 42.

The square root of 38871915 is about 6234.7345573007. The cubic root of 38871915 is about 338.7494864350.

The spelling of 38871915 in words is "thirty-eight million, eight hundred seventy-one thousand, nine hundred fifteen".