2287992979 has 2 divisors, whose sum is σ = 2287992980. Its totient is φ = 2287992978.

The previous prime is 2287992929. The next prime is 2287992997. The reversal of 2287992979 is 9792997822.

Together with next prime (2287992997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2287992979 - 2²⁵ = 2254438547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2287992979.

It is not a weakly prime, because it can be changed into another prime (2287992929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1143996489 + 1143996490.

It is an arithmetic number, because the mean of its divisors is an integer number (1143996490).

Almost surely, 2^2287992979 is an apocalyptic number.

2287992979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2287992979 is an equidigital number, since it uses as much as digits as its factorization.

2287992979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20575296, while the sum is 64.

The square root of 2287992979 is about 47832.9695816599. The cubic root of 2287992979 is about 1317.7051070579.

The spelling of 2287992979 in words is "two billion, two hundred eighty-seven million, nine hundred ninety-two thousand, nine hundred seventy-nine".