20092979 has 2 divisors, whose sum is σ = 20092980. Its totient is φ = 20092978.

The previous prime is 20092957. The next prime is 20092999. The reversal of 20092979 is 97929002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20092979 - 2¹⁶ = 20027443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20092909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10046489 + 10046490.

It is an arithmetic number, because the mean of its divisors is an integer number (10046490).

Almost surely, 2^20092979 is an apocalyptic number.

20092979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20092979 is an equidigital number, since it uses as much as digits as its factorization.

20092979 is an odious number, because the sum of its binary digits is odd.

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

The square root of 20092979 is about 4482.5192693395. The cubic root of 20092979 is about 271.8617512194.

The spelling of 20092979 in words is "twenty million, ninety-two thousand, nine hundred seventy-nine".