3973642 has 8 divisors (see below), whose sum is σ = 6152832. Its totient is φ = 1922700.

The previous prime is 3973639. The next prime is 3973649. The reversal of 3973642 is 2463793.

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 3⁷ + 9³ + 7⁵ + 3¹¹ + 6⁸ + 4 + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 3973598 and 3973607.

It is not an unprimeable number, because it can be changed into a prime (3973649) 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, 31984 + ... + 32107.

It is an arithmetic number, because the mean of its divisors is an integer number (769104).

Almost surely, 2^3973642 is an apocalyptic number.

3973642 is a deficient number, since it is larger than the sum of its proper divisors (2179190).

3973642 is a wasteful number, since it uses less digits than its factorization.

3973642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64124.

The product of its digits is 27216, while the sum is 34.

The square root of 3973642 is about 1993.3996087087. The cubic root of 3973642 is about 158.3906638802.

The spelling of 3973642 in words is "three million, nine hundred seventy-three thousand, six hundred forty-two".