3894457 has 4 divisors (see below), whose sum is σ = 4450816. Its totient is φ = 3338100.

The previous prime is 3894433. The next prime is 3894469. The reversal of 3894457 is 7544983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3894457 - 2⁷ = 3894329 is a prime.

It is a Duffinian number.

3894457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3894157) 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, 278169 + ... + 278182.

It is an arithmetic number, because the mean of its divisors is an integer number (1112704).

Almost surely, 2^3894457 is an apocalyptic number.

It is an amenable number.

3894457 is a deficient number, since it is larger than the sum of its proper divisors (556359).

3894457 is an equidigital number, since it uses as much as digits as its factorization.

3894457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556358.

The product of its digits is 120960, while the sum is 40.

The square root of 3894457 is about 1973.4378632225. The cubic root of 3894457 is about 157.3314834879.

The spelling of 3894457 in words is "three million, eight hundred ninety-four thousand, four hundred fifty-seven".