2928665 has 4 divisors (see below), whose sum is σ = 3514404. Its totient is φ = 2342928.

The previous prime is 2928647. The next prime is 2928677. The reversal of 2928665 is 5668292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 444889 + 2483776 = 667^2 + 1576^2 .

It is a cyclic number.

It is not a de Polignac number, because 2928665 - 2¹² = 2924569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292862 + ... + 292871.

It is an arithmetic number, because the mean of its divisors is an integer number (878601).

2^2928665 is an apocalyptic number.

It is an amenable number.

2928665 is a deficient number, since it is larger than the sum of its proper divisors (585739).

2928665 is an equidigital number, since it uses as much as digits as its factorization.

2928665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585738.

The product of its digits is 51840, while the sum is 38.

The square root of 2928665 is about 1711.3342747693. The cubic root of 2928665 is about 143.0726316933.

The spelling of 2928665 in words is "two million, nine hundred twenty-eight thousand, six hundred sixty-five".