913085643 has 16 divisors (see below), whose sum is σ = 1243208736. Its totient is φ = 595895040.

The previous prime is 913085611. The next prime is 913085653. The reversal of 913085643 is 346580319.

It is not a de Polignac number, because 913085643 - 2⁵ = 913085611 is a prime.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (913085653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67071 + ... + 79527.

It is an arithmetic number, because the mean of its divisors is an integer number (77700546).

Almost surely, 2^913085643 is an apocalyptic number.

913085643 is a deficient number, since it is larger than the sum of its proper divisors (330123093).

913085643 is a wasteful number, since it uses less digits than its factorization.

913085643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12974.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 913085643 is about 30217.3070110491. The cubic root of 913085643 is about 970.1461653122.

The spelling of 913085643 in words is "nine hundred thirteen million, eighty-five thousand, six hundred forty-three".