2669389 has 2 divisors, whose sum is σ = 2669390. Its totient is φ = 2669388.

The previous prime is 2669369. The next prime is 2669393. The reversal of 2669389 is 9839662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 1119364 = 1245^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 2669389 - 2⁹ = 2668877 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 6³ + 6⁵ + 9 + 3³ + 8⁵ + 9⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2669339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334694 + 1334695.

It is an arithmetic number, because the mean of its divisors is an integer number (1334695).

2^2669389 is an apocalyptic number.

It is an amenable number.

2669389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2669389 is an equidigital number, since it uses as much as digits as its factorization.

2669389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 2669389 is about 1633.8264901757. The cubic root of 2669389 is about 138.7194278339.

The spelling of 2669389 in words is "two million, six hundred sixty-nine thousand, three hundred eighty-nine".