3968158 has 4 divisors (see below), whose sum is σ = 5952240. Its totient is φ = 1984078.

The previous prime is 3968149. The next prime is 3968177. The reversal of 3968158 is 8518693.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3968158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992038 + ... + 992041.

It is an arithmetic number, because the mean of its divisors is an integer number (1488060).

Almost surely, 2^3968158 is an apocalyptic number.

3968158 is a deficient number, since it is larger than the sum of its proper divisors (1984082).

3968158 is a wasteful number, since it uses less digits than its factorization.

3968158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984081.

The product of its digits is 51840, while the sum is 40.

The square root of 3968158 is about 1992.0235942378. The cubic root of 3968158 is about 158.3177656593.

The spelling of 3968158 in words is "three million, nine hundred sixty-eight thousand, one hundred fifty-eight".