2928745 has 4 divisors (see below), whose sum is σ = 3514500. Its totient is φ = 2342992.

The previous prime is 2928719. The next prime is 2928749. The reversal of 2928745 is 5478292.

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 1371241 + 1557504 = 1171^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2928745 - 2⁵ = 2928713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2928749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292870 + ... + 292879.

It is an arithmetic number, because the mean of its divisors is an integer number (878625).

2^2928745 is an apocalyptic number.

It is an amenable number.

2928745 is a deficient number, since it is larger than the sum of its proper divisors (585755).

2928745 is an equidigital number, since it uses as much as digits as its factorization.

2928745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585754.

The product of its digits is 40320, while the sum is 37.

The square root of 2928745 is about 1711.3576481846. The cubic root of 2928745 is about 143.0739344150.

The spelling of 2928745 in words is "two million, nine hundred twenty-eight thousand, seven hundred forty-five".