916930193 has 4 divisors (see below), whose sum is σ = 918335028. Its totient is φ = 915525360.

The previous prime is 916930181. The next prime is 916930211. The reversal of 916930193 is 391039619.

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

It can be written as a sum of positive squares in 2 ways, for example, as 103083409 + 813846784 = 10153^2 + 28528^2 .

It is a cyclic number.

It is not a de Polignac number, because 916930193 - 2⁶ = 916930129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 916930193.

It is not an unprimeable number, because it can be changed into a prime (916930103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701438 + ... + 702743.

It is an arithmetic number, because the mean of its divisors is an integer number (229583757).

Almost surely, 2^916930193 is an apocalyptic number.

It is an amenable number.

916930193 is a deficient number, since it is larger than the sum of its proper divisors (1404835).

916930193 is a wasteful number, since it uses less digits than its factorization.

916930193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404834.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 916930193 is about 30280.8552224008. The cubic root of 916930193 is about 971.5058599313.

The spelling of 916930193 in words is "nine hundred sixteen million, nine hundred thirty thousand, one hundred ninety-three".