2279447801 has 2 divisors, whose sum is σ = 2279447802. Its totient is φ = 2279447800.

The previous prime is 2279447761. The next prime is 2279447809. The reversal of 2279447801 is 1087449722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2248656400 + 30791401 = 47420^2 + 5549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2279447801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2279447809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139723900 + 1139723901.

It is an arithmetic number, because the mean of its divisors is an integer number (1139723901).

Almost surely, 2^2279447801 is an apocalyptic number.

It is an amenable number.

2279447801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279447801 is an equidigital number, since it uses as much as digits as its factorization.

2279447801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 2279447801 is about 47743.5629273727. The cubic root of 2279447801 is about 1316.0626090399.

The spelling of 2279447801 in words is "two billion, two hundred seventy-nine million, four hundred forty-seven thousand, eight hundred one".