22992779 has 2 divisors, whose sum is σ = 22992780. Its totient is φ = 22992778.

The previous prime is 22992763. The next prime is 22992803. The reversal of 22992779 is 97729922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22992779 - 2⁴ = 22992763 is a prime.

It is a super-2 number, since 2×22992779² = 1057335772285682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22992379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11496389 + 11496390.

It is an arithmetic number, because the mean of its divisors is an integer number (11496390).

Almost surely, 2^22992779 is an apocalyptic number.

22992779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22992779 is an equidigital number, since it uses as much as digits as its factorization.

22992779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 22992779 is about 4795.0786229216. The cubic root of 22992779 is about 284.3569331838.

The spelling of 22992779 in words is "twenty-two million, nine hundred ninety-two thousand, seven hundred seventy-nine".