650706431 has 2 divisors, whose sum is σ = 650706432. Its totient is φ = 650706430.

The previous prime is 650706391. The next prime is 650706443. The reversal of 650706431 is 134607056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650706431 - 2²² = 646512127 is a prime.

It is a super-2 number, since 2×650706431² = 846837718689515522, 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 (650706481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325353215 + 325353216.

It is an arithmetic number, because the mean of its divisors is an integer number (325353216).

Almost surely, 2^650706431 is an apocalyptic number.

650706431 is a deficient number, since it is larger than the sum of its proper divisors (1).

650706431 is an equidigital number, since it uses as much as digits as its factorization.

650706431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 650706431 is about 25508.9480574954. The cubic root of 650706431 is about 866.5528061629.

The spelling of 650706431 in words is "six hundred fifty million, seven hundred six thousand, four hundred thirty-one".