979217 has 4 divisors (see below), whose sum is σ = 1036836. Its totient is φ = 921600.

The previous prime is 979211. The next prime is 979219. The reversal of 979217 is 712979.

979217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 712979 = 89 ⋅8011.

It can be written as a sum of positive squares in 2 ways, for example, as 919681 + 59536 = 959^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 979217 - 2⁴ = 979201 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979217.

It is not an unprimeable number, because it can be changed into a prime (979211) 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, 28784 + ... + 28817.

It is an arithmetic number, because the mean of its divisors is an integer number (259209).

2⁹⁷⁹²¹⁷ is an apocalyptic number.

It is an amenable number.

979217 is a deficient number, since it is larger than the sum of its proper divisors (57619).

979217 is a wasteful number, since it uses less digits than its factorization.

979217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57618.

The product of its digits is 7938, while the sum is 35.

The square root of 979217 is about 989.5539399143. The cubic root of 979217 is about 99.3023778844.

It can be divided in two parts, 9792 and 17, that multiplied together give a square (166464 = 408²).

The spelling of 979217 in words is "nine hundred seventy-nine thousand, two hundred seventeen".