2293931 has 4 divisors (see below), whose sum is σ = 2299200. Its totient is φ = 2288664.

The previous prime is 2293919. The next prime is 2293937. The reversal of 2293931 is 1393922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1393922 = 2 ⋅696961.

It is a cyclic number.

It is not a de Polignac number, because 2293931 - 2⁶ = 2293867 is a prime.

It is a super-2 number, since 2×2293931² = 10524238865522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2293894 and 2293903.

It is not an unprimeable number, because it can be changed into a prime (2293937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (574800).

2^2293931 is an apocalyptic number.

2293931 is a deficient number, since it is larger than the sum of its proper divisors (5269).

2293931 is an equidigital number, since it uses as much as digits as its factorization.

2293931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268.

The product of its digits is 2916, while the sum is 29.

The square root of 2293931 is about 1514.5728770845. The cubic root of 2293931 is about 131.8844067622.

Subtracting from 2293931 its reverse (1393922), we obtain a palindrome (900009).

The spelling of 2293931 in words is "two million, two hundred ninety-three thousand, nine hundred thirty-one".