679143 has 4 divisors (see below), whose sum is σ = 905528. Its totient is φ = 452760.

The previous prime is 679127. The next prime is 679153. The reversal of 679143 is 341976.

It is a happy number.

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

It is not a de Polignac number, because 679143 - 2⁴ = 679127 is a prime.

It is a super-2 number, since 2×679143² = 922470428898, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 679143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679123) 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, 113188 + ... + 113193.

It is an arithmetic number, because the mean of its divisors is an integer number (226382).

2⁶⁷⁹¹⁴³ is an apocalyptic number.

679143 is a deficient number, since it is larger than the sum of its proper divisors (226385).

679143 is a wasteful number, since it uses less digits than its factorization.

679143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226384.

The product of its digits is 4536, while the sum is 30.

The square root of 679143 is about 824.1013287212. The cubic root of 679143 is about 87.8996359225.

The spelling of 679143 in words is "six hundred seventy-nine thousand, one hundred forty-three".