679431 has 8 divisors (see below), whose sum is σ = 930544. Its totient is φ = 440640.

The previous prime is 679423. The next prime is 679433. The reversal of 679431 is 134976.

It is a happy number.

679431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679431 - 2³ = 679423 is a prime.

It is a super-2 number, since 2×679431² = 923252967522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2950 + ... + 3171.

It is an arithmetic number, because the mean of its divisors is an integer number (116318).

2⁶⁷⁹⁴³¹ is an apocalyptic number.

679431 is a deficient number, since it is larger than the sum of its proper divisors (251113).

679431 is a wasteful number, since it uses less digits than its factorization.

679431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161.

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

The square root of 679431 is about 824.2760459943. The cubic root of 679431 is about 87.9120591862.

The spelling of 679431 in words is "six hundred seventy-nine thousand, four hundred thirty-one".