979439407 has 2 divisors, whose sum is σ = 979439408. Its totient is φ = 979439406.

The previous prime is 979439401. The next prime is 979439449. The reversal of 979439407 is 704934979.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 979439407 - 2¹⁵ = 979406639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979439401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489719703 + 489719704.

It is an arithmetic number, because the mean of its divisors is an integer number (489719704).

Almost surely, 2^979439407 is an apocalyptic number.

979439407 is a deficient number, since it is larger than the sum of its proper divisors (1).

979439407 is an equidigital number, since it uses as much as digits as its factorization.

979439407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 979439407 is about 31295.9966609150. The cubic root of 979439407 is about 993.0989541185.

The spelling of 979439407 in words is "nine hundred seventy-nine million, four hundred thirty-nine thousand, four hundred seven".