920713 has 4 divisors (see below), whose sum is σ = 960768. Its totient is φ = 880660.

The previous prime is 920707. The next prime is 920729. The reversal of 920713 is 317029.

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 920713 - 2⁹ = 920201 is a prime.

It is a Duffinian number.

920713 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (920743) 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, 19993 + ... + 20038.

It is an arithmetic number, because the mean of its divisors is an integer number (240192).

2⁹²⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

920713 is a deficient number, since it is larger than the sum of its proper divisors (40055).

920713 is a wasteful number, since it uses less digits than its factorization.

920713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40054.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 920713 is about 959.5379096211. The cubic root of 920713 is about 97.2840013453.

The spelling of 920713 in words is "nine hundred twenty thousand, seven hundred thirteen".