695078231 has 2 divisors, whose sum is σ = 695078232. Its totient is φ = 695078230.

The previous prime is 695078227. The next prime is 695078297. The reversal of 695078231 is 132870596.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 695078231 - 2² = 695078227 is a prime.

It is a super-2 number, since 2×695078231² = 966267494420178722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (695078221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347539115 + 347539116.

It is an arithmetic number, because the mean of its divisors is an integer number (347539116).

Almost surely, 2^695078231 is an apocalyptic number.

695078231 is a deficient number, since it is larger than the sum of its proper divisors (1).

695078231 is an equidigital number, since it uses as much as digits as its factorization.

695078231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 695078231 is about 26364.3363466635. The cubic root of 695078231 is about 885.8181252234.

The spelling of 695078231 in words is "six hundred ninety-five million, seventy-eight thousand, two hundred thirty-one".