3894965 has 4 divisors (see below), whose sum is σ = 4673964. Its totient is φ = 3115968.

The previous prime is 3894949. The next prime is 3894973. The reversal of 3894965 is 5694983.

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 790321 + 3104644 = 889^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 3894965 - 2⁴ = 3894949 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent 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, 389492 + ... + 389501.

It is an arithmetic number, because the mean of its divisors is an integer number (1168491).

Almost surely, 2^3894965 is an apocalyptic number.

It is an amenable number.

3894965 is a deficient number, since it is larger than the sum of its proper divisors (778999).

3894965 is an equidigital number, since it uses as much as digits as its factorization.

3894965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778998.

The product of its digits is 233280, while the sum is 44.

The square root of 3894965 is about 1973.5665684238. The cubic root of 3894965 is about 157.3383240581.

The spelling of 3894965 in words is "three million, eight hundred ninety-four thousand, nine hundred sixty-five".