683323915 has 4 divisors (see below), whose sum is σ = 819988704. Its totient is φ = 546659128.

The previous prime is 683323909. The next prime is 683323919. The reversal of 683323915 is 519323386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519323386 = 2 ⋅259661693.

It is a cyclic number.

It is not a de Polignac number, because 683323915 - 2²⁹ = 146453003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683323919) 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, 68332387 + ... + 68332396.

It is an arithmetic number, because the mean of its divisors is an integer number (204997176).

Almost surely, 2^683323915 is an apocalyptic number.

683323915 is a deficient number, since it is larger than the sum of its proper divisors (136664789).

683323915 is a wasteful number, since it uses less digits than its factorization.

683323915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136664788.

The product of its digits is 116640, while the sum is 40.

The square root of 683323915 is about 26140.4650876759. The cubic root of 683323915 is about 880.7964187277.

The spelling of 683323915 in words is "six hundred eighty-three million, three hundred twenty-three thousand, nine hundred fifteen".