3968842 has 8 divisors (see below), whose sum is σ = 6114276. Its totient is φ = 1930752.

The previous prime is 3968827. The next prime is 3968863. The reversal of 3968842 is 2488693.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 4761 = 1991^2 + 69^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3968795 and 3968804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26743 + ... + 26890.

Almost surely, 2^3968842 is an apocalyptic number.

3968842 is a deficient number, since it is larger than the sum of its proper divisors (2145434).

3968842 is a wasteful number, since it uses less digits than its factorization.

3968842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53672.

The product of its digits is 82944, while the sum is 40.

The square root of 3968842 is about 1992.1952715535. The cubic root of 3968842 is about 158.3268616622.

The spelling of 3968842 in words is "three million, nine hundred sixty-eight thousand, eight hundred forty-two".