683489731 has 2 divisors, whose sum is σ = 683489732. Its totient is φ = 683489730.

The previous prime is 683489693. The next prime is 683489759. The reversal of 683489731 is 137984386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 683489731 - 2¹⁷ = 683358659 is a prime.

It is a super-2 number, since 2×683489731² = 934316424764904722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (683489791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341744865 + 341744866.

It is an arithmetic number, because the mean of its divisors is an integer number (341744866).

Almost surely, 2^683489731 is an apocalyptic number.

683489731 is a deficient number, since it is larger than the sum of its proper divisors (1).

683489731 is an equidigital number, since it uses as much as digits as its factorization.

683489731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 683489731 is about 26143.6365297561. The cubic root of 683489731 is about 880.8676579179.

The spelling of 683489731 in words is "six hundred eighty-three million, four hundred eighty-nine thousand, seven hundred thirty-one".