3632945 has 4 divisors (see below), whose sum is σ = 4359540. Its totient is φ = 2906352.

The previous prime is 3632939. The next prime is 3632953. The reversal of 3632945 is 5492363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5492363 = 31 ⋅177173.

It can be written as a sum of positive squares in 2 ways, for example, as 732736 + 2900209 = 856^2 + 1703^2 .

It is a cyclic number.

It is not a de Polignac number, because 3632945 - 2⁴ = 3632929 is a prime.

It is an alternating number because its digits alternate between odd and even.

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, 363290 + ... + 363299.

It is an arithmetic number, because the mean of its divisors is an integer number (1089885).

Almost surely, 2^3632945 is an apocalyptic number.

It is an amenable number.

3632945 is a deficient number, since it is larger than the sum of its proper divisors (726595).

3632945 is an equidigital number, since it uses as much as digits as its factorization.

3632945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726594.

The product of its digits is 19440, while the sum is 32.

The square root of 3632945 is about 1906.0285936995. The cubic root of 3632945 is about 153.7279872423.

The spelling of 3632945 in words is "three million, six hundred thirty-two thousand, nine hundred forty-five".