2472731 has 2 divisors, whose sum is σ = 2472732. Its totient is φ = 2472730.

The previous prime is 2472727. The next prime is 2472737. The reversal of 2472731 is 1372742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2472731 - 2² = 2472727 is a prime.

It is a super-2 number, since 2×2472731² = 12228797196722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2472731.

It is not a weakly prime, because it can be changed into another prime (2472737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1236365 + 1236366.

It is an arithmetic number, because the mean of its divisors is an integer number (1236366).

2^2472731 is an apocalyptic number.

2472731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2472731 is an equidigital number, since it uses as much as digits as its factorization.

2472731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 26.

The square root of 2472731 is about 1572.4919713627. The cubic root of 2472731 is about 135.2256126855.

The spelling of 2472731 in words is "two million, four hundred seventy-two thousand, seven hundred thirty-one".