2631393 has 8 divisors (see below), whose sum is σ = 3898400. Its totient is φ = 1754244.

The previous prime is 2631347. The next prime is 2631401. The reversal of 2631393 is 3931362.

It is not a de Polignac number, because 2631393 - 2⁸ = 2631137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 97459 = 2631393 / (2 + 6 + 3 + 1 + 3 + 9 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631323) 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, 48703 + ... + 48756.

It is an arithmetic number, because the mean of its divisors is an integer number (487300).

2^2631393 is an apocalyptic number.

It is an amenable number.

2631393 is a deficient number, since it is larger than the sum of its proper divisors (1267007).

2631393 is an equidigital number, since it uses as much as digits as its factorization.

2631393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97468 (or 97462 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 2631393 is about 1622.1568974671. The cubic root of 2631393 is about 138.0581040766.

The spelling of 2631393 in words is "two million, six hundred thirty-one thousand, three hundred ninety-three".