913226997 has 4 divisors (see below), whose sum is σ = 1217636000. Its totient is φ = 608817996.

The previous prime is 913226971. The next prime is 913227031. The reversal of 913226997 is 799622319.

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 not a de Polignac number, because 913226997 - 2⁷ = 913226869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913226947) 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, 152204497 + ... + 152204502.

It is an arithmetic number, because the mean of its divisors is an integer number (304409000).

Almost surely, 2^913226997 is an apocalyptic number.

It is an amenable number.

913226997 is a deficient number, since it is larger than the sum of its proper divisors (304409003).

913226997 is a wasteful number, since it uses less digits than its factorization.

913226997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304409002.

The product of its digits is 367416, while the sum is 48.

The square root of 913226997 is about 30219.6458781370. The cubic root of 913226997 is about 970.1962252258.

The spelling of 913226997 in words is "nine hundred thirteen million, two hundred twenty-six thousand, nine hundred ninety-seven".