961113397 has 4 divisors (see below), whose sum is σ = 1002900960. Its totient is φ = 919325836.

The previous prime is 961113383. The next prime is 961113407. The reversal of 961113397 is 793311169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 961113397 - 2²⁷ = 826895669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961113997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20893747 + ... + 20893792.

It is an arithmetic number, because the mean of its divisors is an integer number (250725240).

Almost surely, 2^961113397 is an apocalyptic number.

It is an amenable number.

961113397 is a deficient number, since it is larger than the sum of its proper divisors (41787563).

961113397 is a wasteful number, since it uses less digits than its factorization.

961113397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41787562.

The product of its digits is 30618, while the sum is 40.

The square root of 961113397 is about 31001.8289299196. The cubic root of 961113397 is about 986.8660536578.

The spelling of 961113397 in words is "nine hundred sixty-one million, one hundred thirteen thousand, three hundred ninety-seven".