2405706631 has 2 divisors, whose sum is σ = 2405706632. Its totient is φ = 2405706630.

The previous prime is 2405706617. The next prime is 2405706659. The reversal of 2405706631 is 1366075042.

It is a happy number.

2405706631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2405706631 - 2⁵ = 2405706599 is a prime.

It is a super-2 number, since 2×2405706631² = 11574848788874740322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2405706661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202853315 + 1202853316.

It is an arithmetic number, because the mean of its divisors is an integer number (1202853316).

Almost surely, 2^2405706631 is an apocalyptic number.

2405706631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405706631 is an equidigital number, since it uses as much as digits as its factorization.

2405706631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2405706631 is about 49048.0033334691. The cubic root of 2405706631 is about 1339.9262287671.

The spelling of 2405706631 in words is "two billion, four hundred five million, seven hundred six thousand, six hundred thirty-one".