979431 has 8 divisors (see below), whose sum is σ = 1374720. Its totient is φ = 618552.

The previous prime is 979423. The next prime is 979439. The reversal of 979431 is 134979.

It is an interprime number because it is at equal distance from previous prime (979423) and next prime (979439).

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

It is not a de Polignac number, because 979431 - 2³ = 979423 is a prime.

It is a super-2 number, since 2×979431² = 1918570167522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 979392 and 979401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979439) 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, 8535 + ... + 8648.

It is an arithmetic number, because the mean of its divisors is an integer number (171840).

2⁹⁷⁹⁴³¹ is an apocalyptic number.

979431 is a deficient number, since it is larger than the sum of its proper divisors (395289).

979431 is a wasteful number, since it uses less digits than its factorization.

979431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205.

The product of its digits is 6804, while the sum is 33.

The square root of 979431 is about 989.6620635348. The cubic root of 979431 is about 99.3096112695.

The spelling of 979431 in words is "nine hundred seventy-nine thousand, four hundred thirty-one".