2317491 has 42 divisors (see below), whose sum is σ = 4026612. Its totient is φ = 1321920.

The previous prime is 2317453. The next prime is 2317493. The reversal of 2317491 is 1947132.

2317491 = 314² + 315² + ... + 335².

2317491 = 43³ + 44³ + ... + 59³.

It is not a de Polignac number, because 2317491 - 2⁷ = 2317363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (1512) is a multiple of the sum of its prime factors (63).

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (2317493) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 136315 + ... + 136331.

2^2317491 is an apocalyptic number.

2317491 is a deficient number, since it is larger than the sum of its proper divisors (1709121).

2317491 is an equidigital number, since it uses as much as digits as its factorization.

2317491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 31 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2317491 is about 1522.3307787731. The cubic root of 2317491 is about 132.3343795146.

The spelling of 2317491 in words is "two million, three hundred seventeen thousand, four hundred ninety-one".