2045747 has 16 divisors (see below), whose sum is σ = 2371680. Its totient is φ = 1761760.

The previous prime is 2045731. The next prime is 2045753. The reversal of 2045747 is 7475402.

It is not a de Polignac number, because 2045747 - 2⁴ = 2045731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045047) 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, 38573 + ... + 38625.

It is an arithmetic number, because the mean of its divisors is an integer number (148230).

2^2045747 is an apocalyptic number.

2045747 is a deficient number, since it is larger than the sum of its proper divisors (325933).

2045747 is an equidigital number, since it uses as much as digits as its factorization.

2045747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 2045747 is about 1430.2961231857. The cubic root of 2045747 is about 126.9454991726.

The spelling of 2045747 in words is "two million, forty-five thousand, seven hundred forty-seven".