961801697 has 2 divisors, whose sum is σ = 961801698. Its totient is φ = 961801696.

The previous prime is 961801693. The next prime is 961801703. The reversal of 961801697 is 796108169.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787588096 + 174213601 = 28064^2 + 13199^2 .

It is a cyclic number.

It is not a de Polignac number, because 961801697 - 2² = 961801693 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (961801693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480900848 + 480900849.

It is an arithmetic number, because the mean of its divisors is an integer number (480900849).

Almost surely, 2^961801697 is an apocalyptic number.

It is an amenable number.

961801697 is a deficient number, since it is larger than the sum of its proper divisors (1).

961801697 is an equidigital number, since it uses as much as digits as its factorization.

961801697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 961801697 is about 31012.9279011189. The cubic root of 961801697 is about 987.1015783527.

The spelling of 961801697 in words is "nine hundred sixty-one million, eight hundred one thousand, six hundred ninety-seven".