2849665 has 16 divisors (see below), whose sum is σ = 4209408. Its totient is φ = 1803456.

The previous prime is 2849663. The next prime is 2849669. The reversal of 2849665 is 5669482.

2849665 = 130² + 131² + ... + 220².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2849665 - 2¹ = 2849663 is a prime.

It is a super-2 number, since 2×2849665² = 16241181224450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2849663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2677 + ... + 3586.

It is an arithmetic number, because the mean of its divisors is an integer number (263088).

2^2849665 is an apocalyptic number.

It is an amenable number.

2849665 is a deficient number, since it is larger than the sum of its proper divisors (1359743).

2849665 is a wasteful number, since it uses less digits than its factorization.

2849665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6288.

The product of its digits is 103680, while the sum is 40.

The square root of 2849665 is about 1688.0950802606. The cubic root of 2849665 is about 141.7744385615.

It can be divided in two parts, 28496 and 65, that added together give a 4-th power (28561 = 13⁴).

The spelling of 2849665 in words is "two million, eight hundred forty-nine thousand, six hundred sixty-five".