2606431 has 2 divisors, whose sum is σ = 2606432. Its totient is φ = 2606430.

The previous prime is 2606407. The next prime is 2606437. The reversal of 2606431 is 1346062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2606431 is a prime.

It is a super-2 number, since 2×2606431² = 13586965115522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2606437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303215 + 1303216.

It is an arithmetic number, because the mean of its divisors is an integer number (1303216).

2^2606431 is an apocalyptic number.

2606431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2606431 is an equidigital number, since it uses as much as digits as its factorization.

2606431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2606431 is about 1614.4444865030. Note that the first 4 decimals coincide. The cubic root of 2606431 is about 137.6201660265.

The spelling of 2606431 in words is "two million, six hundred six thousand, four hundred thirty-one".