992109479 has 2 divisors, whose sum is σ = 992109480. Its totient is φ = 992109478.

The previous prime is 992109473. The next prime is 992109553. The reversal of 992109479 is 974901299.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 992109479 - 2⁴ = 992109463 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992109473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496054739 + 496054740.

It is an arithmetic number, because the mean of its divisors is an integer number (496054740).

Almost surely, 2^992109479 is an apocalyptic number.

992109479 is a deficient number, since it is larger than the sum of its proper divisors (1).

992109479 is an equidigital number, since it uses as much as digits as its factorization.

992109479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 992109479 is about 31497.7694289612. The cubic root of 992109479 is about 997.3628780343.

The spelling of 992109479 in words is "nine hundred ninety-two million, one hundred nine thousand, four hundred seventy-nine".