961909934 has 8 divisors (see below), whose sum is σ = 1443677688. Its totient is φ = 480684040.

The previous prime is 961909891. The next prime is 961909939. The reversal of 961909934 is 439909169.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×961909934² = 1850541442255768712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961909939) 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, 130997 + ... + 138144.

It is an arithmetic number, because the mean of its divisors is an integer number (180459711).

Almost surely, 2^961909934 is an apocalyptic number.

961909934 is a deficient number, since it is larger than the sum of its proper divisors (481767754).

961909934 is a wasteful number, since it uses less digits than its factorization.

961909934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270930.

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 961909934 is about 31014.6728823633. The cubic root of 961909934 is about 987.1386050102.

The spelling of 961909934 in words is "nine hundred sixty-one million, nine hundred nine thousand, nine hundred thirty-four".