3992946 has 16 divisors (see below), whose sum is σ = 8005824. Its totient is φ = 1327664.

The previous prime is 3992939. The next prime is 3992951. The reversal of 3992946 is 6492993.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3992898 and 3992907.

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, 3571 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (500364).

Almost surely, 2^3992946 is an apocalyptic number.

3992946 is an abundant number, since it is smaller than the sum of its proper divisors (4012878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3992946 is a wasteful number, since it uses less digits than its factorization.

3992946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its digits is 104976, while the sum is 42.

The square root of 3992946 is about 1998.2357218306. The cubic root of 3992946 is about 158.6467375655.

The spelling of 3992946 in words is "three million, nine hundred ninety-two thousand, nine hundred forty-six".