2207649989 has 2 divisors, whose sum is σ = 2207649990. Its totient is φ = 2207649988.

The previous prime is 2207649979. The next prime is 2207650031. The reversal of 2207649989 is 9899467022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2044577089 + 163072900 = 45217^2 + 12770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2207649989 - 2⁴ = 2207649973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2207649929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103824994 + 1103824995.

It is an arithmetic number, because the mean of its divisors is an integer number (1103824995).

Almost surely, 2^2207649989 is an apocalyptic number.

It is an amenable number.

2207649989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2207649989 is an equidigital number, since it uses as much as digits as its factorization.

2207649989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The square root of 2207649989 is about 46985.6359859053. The cubic root of 2207649989 is about 1302.0972044451.

The spelling of 2207649989 in words is "two billion, two hundred seven million, six hundred forty-nine thousand, nine hundred eighty-nine".