979458409 has 2 divisors, whose sum is σ = 979458410. Its totient is φ = 979458408.

The previous prime is 979458401. The next prime is 979458479. The reversal of 979458409 is 904854979.

979458409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 819562384 + 159896025 = 28628^2 + 12645^2 .

It is a cyclic number.

It is not a de Polignac number, because 979458409 - 2³ = 979458401 is a prime.

It is a super-2 number, since 2×979458409² = 1918677549921622562, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 979458409.

It is not a weakly prime, because it can be changed into another prime (979458401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489729204 + 489729205.

It is an arithmetic number, because the mean of its divisors is an integer number (489729205).

Almost surely, 2^979458409 is an apocalyptic number.

It is an amenable number.

979458409 is a deficient number, since it is larger than the sum of its proper divisors (1).

979458409 is an equidigital number, since it uses as much as digits as its factorization.

979458409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 979458409 is about 31296.3002445976. The cubic root of 979458409 is about 993.1053764128.

The spelling of 979458409 in words is "nine hundred seventy-nine million, four hundred fifty-eight thousand, four hundred nine".