2372681 has 2 divisors, whose sum is σ = 2372682. Its totient is φ = 2372680.

The previous prime is 2372659. The next prime is 2372683. The reversal of 2372681 is 1862732.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 241081 = 1460^2 + 491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2372681 is a prime.

It is a super-2 number, since 2×2372681² = 11259230255522, which contains 22 as substring.

Together with 2372683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2372683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1186340 + 1186341.

It is an arithmetic number, because the mean of its divisors is an integer number (1186341).

2^2372681 is an apocalyptic number.

It is an amenable number.

2372681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2372681 is an equidigital number, since it uses as much as digits as its factorization.

2372681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 2372681 is about 1540.3509340407. The cubic root of 2372681 is about 133.3766435690.

The spelling of 2372681 in words is "two million, three hundred seventy-two thousand, six hundred eighty-one".