2316981 has 16 divisors (see below), whose sum is σ = 3302208. Its totient is φ = 1440000.

The previous prime is 2316973. The next prime is 2317009. The reversal of 2316981 is 1896132.

It is not a de Polignac number, because 2316981 - 2³ = 2316973 is a prime.

It is a super-2 number, since 2×2316981² = 10736801908722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2316911) 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, 9106 + ... + 9356.

It is an arithmetic number, because the mean of its divisors is an integer number (206388).

2^2316981 is an apocalyptic number.

It is an amenable number.

2316981 is a deficient number, since it is larger than the sum of its proper divisors (985227).

2316981 is a wasteful number, since it uses less digits than its factorization.

2316981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 2592, while the sum is 30.

The square root of 2316981 is about 1522.1632632540. The cubic root of 2316981 is about 132.3246713885.

The spelling of 2316981 in words is "two million, three hundred sixteen thousand, nine hundred eighty-one".