546646631 has 2 divisors, whose sum is σ = 546646632. Its totient is φ = 546646630.

The previous prime is 546646609. The next prime is 546646649. The reversal of 546646631 is 136646645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 546646631 - 2²² = 542452327 is a prime.

It is a super-2 number, since 2×546646631² = 597645078367300322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546646651) 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, 273323315 + 273323316.

It is an arithmetic number, because the mean of its divisors is an integer number (273323316).

Almost surely, 2^546646631 is an apocalyptic number.

546646631 is a deficient number, since it is larger than the sum of its proper divisors (1).

546646631 is an equidigital number, since it uses as much as digits as its factorization.

546646631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 41.

The square root of 546646631 is about 23380.4754228822. The cubic root of 546646631 is about 817.6527315818.

The spelling of 546646631 in words is "five hundred forty-six million, six hundred forty-six thousand, six hundred thirty-one".