3974858 has 4 divisors (see below), whose sum is σ = 5962290. Its totient is φ = 1987428.

The previous prime is 3974849. The next prime is 3974881. The reversal of 3974858 is 8584793.

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

It can be written as a sum of positive squares in only one way, i.e., 3972049 + 2809 = 1993^2 + 53^2 .

It is a super-2 number, since 2×3974858² = 31598992240328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993713 + ... + 993716.

Almost surely, 2^3974858 is an apocalyptic number.

3974858 is a deficient number, since it is larger than the sum of its proper divisors (1987432).

3974858 is a wasteful number, since it uses less digits than its factorization.

3974858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987431.

The product of its digits is 241920, while the sum is 44.

The square root of 3974858 is about 1993.7045919594. The cubic root of 3974858 is about 158.4068189511.

The spelling of 3974858 in words is "three million, nine hundred seventy-four thousand, eight hundred fifty-eight".