961920794 has 4 divisors (see below), whose sum is σ = 1442881194. Its totient is φ = 480960396.

The previous prime is 961920779. The next prime is 961920821. The reversal of 961920794 is 497029169.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 698280625 + 263640169 = 26425^2 + 16237^2 .

It is a super-2 number, since 2×961920794² = 1850583227859180872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240480197 + ... + 240480200.

Almost surely, 2^961920794 is an apocalyptic number.

961920794 is a deficient number, since it is larger than the sum of its proper divisors (480960400).

961920794 is a wasteful number, since it uses less digits than its factorization.

961920794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480960399.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 961920794 is about 31014.8479602915. The cubic root of 961920794 is about 987.1423199404.

The spelling of 961920794 in words is "nine hundred sixty-one million, nine hundred twenty thousand, seven hundred ninety-four".