2928621 has 16 divisors (see below), whose sum is σ = 4038336. Its totient is φ = 1886976.

The previous prime is 2928581. The next prime is 2928647. The reversal of 2928621 is 1268292.

It is not a de Polignac number, because 2928621 - 2¹⁰ = 2927597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928691) 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, 17886 + ... + 18048.

It is an arithmetic number, because the mean of its divisors is an integer number (252396).

2^2928621 is an apocalyptic number.

It is an amenable number.

2928621 is a deficient number, since it is larger than the sum of its proper divisors (1109715).

2928621 is a wasteful number, since it uses less digits than its factorization.

2928621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332.

The product of its digits is 3456, while the sum is 30.

The square root of 2928621 is about 1711.3214192547. The cubic root of 2928621 is about 143.0719151862.

The spelling of 2928621 in words is "two million, nine hundred twenty-eight thousand, six hundred twenty-one".