403606631 has 2 divisors, whose sum is σ = 403606632. Its totient is φ = 403606630.

The previous prime is 403606627. The next prime is 403606657. The reversal of 403606631 is 136606304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 403606631 - 2² = 403606627 is a prime.

It is a super-2 number, since 2×403606631² = 325796625174340322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 403606594 and 403606603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403602631) 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, 201803315 + 201803316.

It is an arithmetic number, because the mean of its divisors is an integer number (201803316).

Almost surely, 2^403606631 is an apocalyptic number.

403606631 is a deficient number, since it is larger than the sum of its proper divisors (1).

403606631 is an equidigital number, since it uses as much as digits as its factorization.

403606631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 403606631 is about 20089.9634394889. The cubic root of 403606631 is about 739.0141675288.

The spelling of 403606631 in words is "four hundred three million, six hundred six thousand, six hundred thirty-one".