683208407 has 4 divisors (see below), whose sum is σ = 780809616. Its totient is φ = 585607200.

The previous prime is 683208401. The next prime is 683208413. The reversal of 683208407 is 704802386.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (683208401) and next prime (683208413).

It is a cyclic number.

It is not a de Polignac number, because 683208407 - 2⁶ = 683208343 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 (683208401) 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, 48800594 + ... + 48800607.

It is an arithmetic number, because the mean of its divisors is an integer number (195202404).

Almost surely, 2^683208407 is an apocalyptic number.

683208407 is a deficient number, since it is larger than the sum of its proper divisors (97601209).

683208407 is an equidigital number, since it uses as much as digits as its factorization.

683208407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97601208.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 683208407 is about 26138.2556227458. The cubic root of 683208407 is about 880.7467864505.

The spelling of 683208407 in words is "six hundred eighty-three million, two hundred eight thousand, four hundred seven".