979409 has 8 divisors (see below), whose sum is σ = 1034880. Its totient is φ = 925056.

The previous prime is 979403. The next prime is 979423. The reversal of 979409 is 904979.

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

It is a cyclic number.

It is not a de Polignac number, because 979409 - 2¹² = 975313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979403) 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, 2012 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (129360).

2⁹⁷⁹⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

979409 is a deficient number, since it is larger than the sum of its proper divisors (55471).

979409 is a wasteful number, since it uses less digits than its factorization.

979409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 979409 is about 989.6509485672. The cubic root of 979409 is about 99.3088676991.

It can be divided in two parts, 97 and 9409, that multiplied together give a cube (912673 = 97³).

The spelling of 979409 in words is "nine hundred seventy-nine thousand, four hundred nine".