3963918 has 16 divisors (see below), whose sum is σ = 9060480. Its totient is φ = 1132536.

The previous prime is 3963899. The next prime is 3963931. The reversal of 3963918 is 8193693.

It is an Ulam number.

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, 47148 + ... + 47231.

It is an arithmetic number, because the mean of its divisors is an integer number (566280).

Almost surely, 2^3963918 is an apocalyptic number.

3963918 is an abundant number, since it is smaller than the sum of its proper divisors (5096562).

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

3963918 is a wasteful number, since it uses less digits than its factorization.

3963918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94391.

The product of its digits is 34992, while the sum is 39.

The square root of 3963918 is about 1990.9590653753. The cubic root of 3963918 is about 158.2613577447.

The spelling of 3963918 in words is "three million, nine hundred sixty-three thousand, nine hundred eighteen".