2662669 has 2 divisors, whose sum is σ = 2662670. Its totient is φ = 2662668.

The previous prime is 2662661. The next prime is 2662697. The reversal of 2662669 is 9662662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2449225 + 213444 = 1565^2 + 462^2 .

It is a cyclic number.

It is not a de Polignac number, because 2662669 - 2³ = 2662661 is a prime.

It is a super-2 number, since 2×2662669² = 14179612407122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2662661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331334 + 1331335.

It is an arithmetic number, because the mean of its divisors is an integer number (1331335).

2^2662669 is an apocalyptic number.

It is an amenable number.

2662669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662669 is an equidigital number, since it uses as much as digits as its factorization.

2662669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 2662669 is about 1631.7686723307. The cubic root of 2662669 is about 138.6029245323.

The spelling of 2662669 in words is "two million, six hundred sixty-two thousand, six hundred sixty-nine".