896409979 has 2 divisors, whose sum is σ = 896409980. Its totient is φ = 896409978.

The previous prime is 896409953. The next prime is 896410007. The reversal of 896409979 is 979904698.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 896409979 - 2¹¹ = 896407931 is a prime.

It is not a weakly prime, because it can be changed into another prime (896409079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448204989 + 448204990.

It is an arithmetic number, because the mean of its divisors is an integer number (448204990).

Almost surely, 2^896409979 is an apocalyptic number.

896409979 is a deficient number, since it is larger than the sum of its proper divisors (1).

896409979 is an equidigital number, since it uses as much as digits as its factorization.

896409979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The square root of 896409979 is about 29940.1065295366. The cubic root of 896409979 is about 964.2039230876.

The spelling of 896409979 in words is "eight hundred ninety-six million, four hundred nine thousand, nine hundred seventy-nine".