15790971 has 16 divisors (see below), whose sum is σ = 24713984. Its totient is φ = 8779104.

The previous prime is 15790967. The next prime is 15790991. The reversal of 15790971 is 17909751.

It is not a de Polignac number, because 15790971 - 2² = 15790967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15790991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9385 + ... + 10938.

It is an arithmetic number, because the mean of its divisors is an integer number (1544624).

Almost surely, 2^15790971 is an apocalyptic number.

15790971 is a deficient number, since it is larger than the sum of its proper divisors (8923013).

15790971 is a wasteful number, since it uses less digits than its factorization.

15790971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 15790971 is about 3973.7854748338. The cubic root of 15790971 is about 250.8820628669.

It can be divided in two parts, 15790 and 971, that added together give a palindrome (16761).

The spelling of 15790971 in words is "fifteen million, seven hundred ninety thousand, nine hundred seventy-one".