3972694 has 16 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1797160.

The previous prime is 3972671. The next prime is 3972697. The reversal of 3972694 is 4962793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7647 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (408240).

Almost surely, 2^3972694 is an apocalyptic number.

3972694 is a deficient number, since it is larger than the sum of its proper divisors (2559146).

3972694 is a wasteful number, since it uses less digits than its factorization.

3972694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its digits is 81648, while the sum is 40.

The square root of 3972694 is about 1993.1618097887. The cubic root of 3972694 is about 158.3780670155.

Subtracting 3972694 from its reverse (4962793), we obtain a palindrome (990099).

The spelling of 3972694 in words is "three million, nine hundred seventy-two thousand, six hundred ninety-four".