1679494943 has 6 divisors (see below), whose sum is σ = 1953698256. Its totient is φ = 1439567052.

The previous prime is 1679494907. The next prime is 1679494961. The reversal of 1679494943 is 3494949761.

It is a happy number.

It is not a de Polignac number, because 1679494943 - 2¹⁰ = 1679493919 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 (1679494543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17137655 + ... + 17137752.

It is an arithmetic number, because the mean of its divisors is an integer number (325616376).

Almost surely, 2^1679494943 is an apocalyptic number.

1679494943 is a deficient number, since it is larger than the sum of its proper divisors (274203313).

1679494943 is an equidigital number, since it uses as much as digits as its factorization.

1679494943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34275421 (or 34275414 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 56.

The square root of 1679494943 is about 40981.6415361806. The cubic root of 1679494943 is about 1188.6652508593.

The spelling of 1679494943 in words is "one billion, six hundred seventy-nine million, four hundred ninety-four thousand, nine hundred forty-three".