913613009 has 4 divisors (see below), whose sum is σ = 914109504. Its totient is φ = 913116516.

The previous prime is 913613003. The next prime is 913613011. The reversal of 913613009 is 900316319.

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 913613009 - 2²⁸ = 645177553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913613003) 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, 245477 + ... + 249170.

It is an arithmetic number, because the mean of its divisors is an integer number (228527376).

Almost surely, 2^913613009 is an apocalyptic number.

It is an amenable number.

913613009 is a deficient number, since it is larger than the sum of its proper divisors (496495).

913613009 is a wasteful number, since it uses less digits than its factorization.

913613009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496494.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 913613009 is about 30226.0319757655. The cubic root of 913613009 is about 970.3329034128.

The spelling of 913613009 in words is "nine hundred thirteen million, six hundred thirteen thousand, nine".