4456945 has 4 divisors (see below), whose sum is σ = 5348340. Its totient is φ = 3565552.

The previous prime is 4456939. The next prime is 4456951. The reversal of 4456945 is 5496544.

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

It is an interprime number because it is at equal distance from previous prime (4456939) and next prime (4456951).

It can be written as a sum of positive squares in 2 ways, for example, as 1129969 + 3326976 = 1063^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 4456945 - 2³ = 4456937 is a prime.

4456945 is a lucky 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, 445690 + ... + 445699.

It is an arithmetic number, because the mean of its divisors is an integer number (1337085).

Almost surely, 2^4456945 is an apocalyptic number.

It is an amenable number.

4456945 is a deficient number, since it is larger than the sum of its proper divisors (891395).

4456945 is an equidigital number, since it uses as much as digits as its factorization.

4456945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891394.

The product of its digits is 86400, while the sum is 37.

The square root of 4456945 is about 2111.1477920790. The cubic root of 4456945 is about 164.5681391019.

The spelling of 4456945 in words is "four million, four hundred fifty-six thousand, nine hundred forty-five".