3974478 has 16 divisors (see below), whose sum is σ = 8032080. Its totient is φ = 1310976.

The previous prime is 3974459. The next prime is 3974483. The reversal of 3974478 is 8744793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833 + ... + 3996.

It is an arithmetic number, because the mean of its divisors is an integer number (502005).

Almost surely, 2^3974478 is an apocalyptic number.

3974478 is an abundant number, since it is smaller than the sum of its proper divisors (4057602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3974478 is a wasteful number, since it uses less digits than its factorization.

3974478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931.

The product of its digits is 169344, while the sum is 42.

The square root of 3974478 is about 1993.6092897055. The cubic root of 3974478 is about 158.4017708454.

The spelling of 3974478 in words is "three million, nine hundred seventy-four thousand, four hundred seventy-eight".