979397 has 4 divisors (see below), whose sum is σ = 989196. Its totient is φ = 969600.

The previous prime is 979379. The next prime is 979403. The reversal of 979397 is 793979.

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

It can be written as a sum of positive squares in 2 ways, for example, as 568516 + 410881 = 754^2 + 641^2 .

It is not a de Polignac number, because 979397 - 2⁶ = 979333 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (979327) 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, 4748 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (247299).

2⁹⁷⁹³⁹⁷ is an apocalyptic number.

It is an amenable number.

979397 is a deficient number, since it is larger than the sum of its proper divisors (9799).

979397 is a wasteful number, since it uses less digits than its factorization.

979397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9798.

The product of its digits is 107163, while the sum is 44.

The square root of 979397 is about 989.6448858050. The cubic root of 979397 is about 99.3084621105.

The spelling of 979397 in words is "nine hundred seventy-nine thousand, three hundred ninety-seven".