706877231 has 2 divisors, whose sum is σ = 706877232. Its totient is φ = 706877230.

The previous prime is 706877209. The next prime is 706877251. The reversal of 706877231 is 132778607.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706877231 is a prime.

It is a super-2 number, since 2×706877231² = 999350839412454722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706877201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353438615 + 353438616.

It is an arithmetic number, because the mean of its divisors is an integer number (353438616).

Almost surely, 2^706877231 is an apocalyptic number.

706877231 is a deficient number, since it is larger than the sum of its proper divisors (1).

706877231 is an equidigital number, since it uses as much as digits as its factorization.

706877231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 706877231 is about 26587.1628986622. The cubic root of 706877231 is about 890.8023026690.

The spelling of 706877231 in words is "seven hundred six million, eight hundred seventy-seven thousand, two hundred thirty-one".