961593979 has 4 divisors (see below), whose sum is σ = 961662520. Its totient is φ = 961525440.

The previous prime is 961593973. The next prime is 961594133. The reversal of 961593979 is 979395169.

961593979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 961593979 - 2⁹ = 961593467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961593973) 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, 4749 + ... + 44110.

It is an arithmetic number, because the mean of its divisors is an integer number (240415630).

Almost surely, 2^961593979 is an apocalyptic number.

961593979 is a deficient number, since it is larger than the sum of its proper divisors (68541).

961593979 is a wasteful number, since it uses less digits than its factorization.

961593979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68540.

The product of its digits is 4133430, while the sum is 58.

The square root of 961593979 is about 31009.5788265497. The cubic root of 961593979 is about 987.0305125850.

The spelling of 961593979 in words is "nine hundred sixty-one million, five hundred ninety-three thousand, nine hundred seventy-nine".