916823013 has 4 divisors (see below), whose sum is σ = 1222430688. Its totient is φ = 611215340.

The previous prime is 916822993. The next prime is 916823051. The reversal of 916823013 is 310328619.

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 916823013 - 2²⁰ = 915774437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916823513) 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, 152803833 + ... + 152803838.

It is an arithmetic number, because the mean of its divisors is an integer number (305607672).

Almost surely, 2^916823013 is an apocalyptic number.

It is an amenable number.

916823013 is a deficient number, since it is larger than the sum of its proper divisors (305607675).

916823013 is a wasteful number, since it uses less digits than its factorization.

916823013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305607674.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 916823013 is about 30279.0854056063. The cubic root of 916823013 is about 971.4680053392.

The spelling of 916823013 in words is "nine hundred sixteen million, eight hundred twenty-three thousand, thirteen".