3968642 has 8 divisors (see below), whose sum is σ = 6091536. Its totient is φ = 1938132.

The previous prime is 3968617. The next prime is 3968647. The reversal of 3968642 is 2468693.

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

It is a d-powerful number, because it can be written as 3⁸ + 9⁴ + 6⁶ + 8⁷ + 6⁸ + 4⁵ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 3968596 and 3968605.

It is not an unprimeable number, because it can be changed into a prime (3968647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22988 + ... + 23159.

It is an arithmetic number, because the mean of its divisors is an integer number (761442).

Almost surely, 2^3968642 is an apocalyptic number.

3968642 is a deficient number, since it is larger than the sum of its proper divisors (2122894).

3968642 is a wasteful number, since it uses less digits than its factorization.

3968642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46192.

The product of its digits is 62208, while the sum is 38.

The square root of 3968642 is about 1992.1450750385. The cubic root of 3968642 is about 158.3242021204.

The spelling of 3968642 in words is "three million, nine hundred sixty-eight thousand, six hundred forty-two".