38890171 has 8 divisors (see below), whose sum is σ = 40656384. Its totient is φ = 37130280.

The previous prime is 38890157. The next prime is 38890211. The reversal of 38890171 is 17109883.

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

It is not a de Polignac number, because 38890171 - 2⁵ = 38890139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38890171.

It is not an unprimeable number, because it can be changed into a prime (38890121) 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, 14670 + ... + 17116.

It is an arithmetic number, because the mean of its divisors is an integer number (5082048).

Almost surely, 2^38890171 is an apocalyptic number.

38890171 is a deficient number, since it is larger than the sum of its proper divisors (1766213).

38890171 is a wasteful number, since it uses less digits than its factorization.

38890171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 38890171 is about 6236.1984413583. The cubic root of 38890171 is about 338.8025088014.

The spelling of 38890171 in words is "thirty-eight million, eight hundred ninety thousand, one hundred seventy-one".