2669999 has 8 divisors (see below), whose sum is σ = 2821632. Its totient is φ = 2522520.

The previous prime is 2669987. The next prime is 2670011. The reversal of 2669999 is 9999662.

It is an interprime number because it is at equal distance from previous prime (2669987) and next prime (2670011).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2669999 - 2²⁰ = 1621423 is a prime.

It is a Duffinian number.

2669999 is a modest number, since divided by 9999 gives 266 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (352704).

2^2669999 is an apocalyptic number.

2669999 is a deficient number, since it is larger than the sum of its proper divisors (151633).

2669999 is a wasteful number, since it uses less digits than its factorization.

2669999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077.

The product of its digits is 472392, while the sum is 50.

The square root of 2669999 is about 1634.0131578418. The cubic root of 2669999 is about 138.7299935984.

The spelling of 2669999 in words is "two million, six hundred sixty-nine thousand, nine hundred ninety-nine".