961697401 has 16 divisors (see below), whose sum is σ = 1116748800. Its totient is φ = 811116288.

The previous prime is 961697383. The next prime is 961697411. The reversal of 961697401 is 104796169.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 961697401 - 2⁷ = 961697273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961697411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242805 + ... + 246733.

It is an arithmetic number, because the mean of its divisors is an integer number (69796800).

Almost surely, 2^961697401 is an apocalyptic number.

It is an amenable number.

961697401 is a deficient number, since it is larger than the sum of its proper divisors (155051399).

961697401 is a wasteful number, since it uses less digits than its factorization.

961697401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 961697401 is about 31011.2463632147. The cubic root of 961697401 is about 987.0658972388.

The spelling of 961697401 in words is "nine hundred sixty-one million, six hundred ninety-seven thousand, four hundred one".