2899969 has 4 divisors (see below), whose sum is σ = 2903380. Its totient is φ = 2896560.

The previous prime is 2899943. The next prime is 2899991. The reversal of 2899969 is 9699982.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2521744 + 378225 = 1588^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 2899969 - 2¹⁷ = 2768897 is a prime.

It is a super-2 number, since 2×2899969² = 16819640401922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2896969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727 + ... + 2515.

It is an arithmetic number, because the mean of its divisors is an integer number (725845).

It is a Proth number, since it is equal to 177 ⋅ 2¹⁴ + 1 and 177 < 2¹⁴.

2^2899969 is an apocalyptic number.

It is an amenable number.

2899969 is a deficient number, since it is larger than the sum of its proper divisors (3411).

2899969 is a wasteful number, since it uses less digits than its factorization.

2899969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410.

The product of its digits is 629856, while the sum is 52.

The square root of 2899969 is about 1702.9295346549. The cubic root of 2899969 is about 142.6038065821.

The spelling of 2899969 in words is "two million, eight hundred ninety-nine thousand, nine hundred sixty-nine".