706946621 has 2 divisors, whose sum is σ = 706946622. Its totient is φ = 706946620.

The previous prime is 706946593. The next prime is 706946627. The reversal of 706946621 is 126649607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 696220996 + 10725625 = 26386^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 706946621 - 2²² = 702752317 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706946627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353473310 + 353473311.

It is an arithmetic number, because the mean of its divisors is an integer number (353473311).

Almost surely, 2^706946621 is an apocalyptic number.

It is an amenable number.

706946621 is a deficient number, since it is larger than the sum of its proper divisors (1).

706946621 is an equidigital number, since it uses as much as digits as its factorization.

706946621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 706946621 is about 26588.4678197146. The cubic root of 706946621 is about 890.8314499979.

The spelling of 706946621 in words is "seven hundred six million, nine hundred forty-six thousand, six hundred twenty-one".