699222961 has 2 divisors, whose sum is σ = 699222962. Its totient is φ = 699222960.

The previous prime is 699222947. The next prime is 699223001. The reversal of 699222961 is 169222996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551357361 + 147865600 = 23481^2 + 12160^2 .

It is a cyclic number.

It is not a de Polignac number, because 699222961 - 2¹¹ = 699220913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (699222911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349611480 + 349611481.

It is an arithmetic number, because the mean of its divisors is an integer number (349611481).

Almost surely, 2^699222961 is an apocalyptic number.

It is an amenable number.

699222961 is a deficient number, since it is larger than the sum of its proper divisors (1).

699222961 is an equidigital number, since it uses as much as digits as its factorization.

699222961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 699222961 is about 26442.8243763786. The cubic root of 699222961 is about 887.5753391310.

The spelling of 699222961 in words is "six hundred ninety-nine million, two hundred twenty-two thousand, nine hundred sixty-one".