3972046 has 16 divisors (see below), whose sum is σ = 6454224. Its totient is φ = 1822464.

The previous prime is 3972037. The next prime is 3972071. The reversal of 3972046 is 6402793.

It is a super-2 number, since 2×3972046² = 31554298852232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3971999 and 3972017.

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, 5566 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (403389).

Almost surely, 2^3972046 is an apocalyptic number.

3972046 is a deficient number, since it is larger than the sum of its proper divisors (2482178).

3972046 is a wasteful number, since it uses less digits than its factorization.

3972046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 3972046 is about 1992.9992473656. Note that the first 3 decimals coincide. The cubic root of 3972046 is about 158.3694553473.

The spelling of 3972046 in words is "three million, nine hundred seventy-two thousand, forty-six".