2045447 has 4 divisors (see below), whose sum is σ = 2052336. Its totient is φ = 2038560.

The previous prime is 2045441. The next prime is 2045503. The reversal of 2045447 is 7445402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045447 - 2⁸ = 2045191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045441) 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, 2978 + ... + 3599.

It is an arithmetic number, because the mean of its divisors is an integer number (513084).

2^2045447 is an apocalyptic number.

2045447 is a deficient number, since it is larger than the sum of its proper divisors (6889).

2045447 is an equidigital number, since it uses as much as digits as its factorization.

2045447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 2045447 is about 1430.1912459528. The cubic root of 2045447 is about 126.9392935320.

The spelling of 2045447 in words is "two million, forty-five thousand, four hundred forty-seven".