2279624989 has 2 divisors, whose sum is σ = 2279624990. Its totient is φ = 2279624988.

The previous prime is 2279624957. The next prime is 2279624993. The reversal of 2279624989 is 9894269722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1852872025 + 426752964 = 43045^2 + 20658^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279624989 - 2⁵ = 2279624957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2279624999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139812494 + 1139812495.

It is an arithmetic number, because the mean of its divisors is an integer number (1139812495).

Almost surely, 2^2279624989 is an apocalyptic number.

It is an amenable number.

2279624989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279624989 is an equidigital number, since it uses as much as digits as its factorization.

2279624989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The square root of 2279624989 is about 47745.4185131935. The cubic root of 2279624989 is about 1316.0967085938.

The spelling of 2279624989 in words is "two billion, two hundred seventy-nine million, six hundred twenty-four thousand, nine hundred eighty-nine".