706443631 has 2 divisors, whose sum is σ = 706443632. Its totient is φ = 706443630.

The previous prime is 706443607. The next prime is 706443649. The reversal of 706443631 is 136344607.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 706443631 - 2²¹ = 704346479 is a prime.

It is a super-2 number, since 2×706443631² = 998125207560928322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706443691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353221815 + 353221816.

It is an arithmetic number, because the mean of its divisors is an integer number (353221816).

Almost surely, 2^706443631 is an apocalyptic number.

706443631 is a deficient number, since it is larger than the sum of its proper divisors (1).

706443631 is an equidigital number, since it uses as much as digits as its factorization.

706443631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 706443631 is about 26579.0073366181. The cubic root of 706443631 is about 890.6201254043.

The spelling of 706443631 in words is "seven hundred six million, four hundred forty-three thousand, six hundred thirty-one".