3992841 has 16 divisors (see below), whose sum is σ = 6264000. Its totient is φ = 2505024.

The previous prime is 3992837. The next prime is 3992843. The reversal of 3992841 is 1482993.

It is not a de Polignac number, because 3992841 - 2² = 3992837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3992796 and 3992805.

It is not an unprimeable number, because it can be changed into a prime (3992843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3891 + ... + 4808.

It is an arithmetic number, because the mean of its divisors is an integer number (391500).

Almost surely, 2^3992841 is an apocalyptic number.

It is an amenable number.

3992841 is a deficient number, since it is larger than the sum of its proper divisors (2271159).

3992841 is a wasteful number, since it uses less digits than its factorization.

3992841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725 (or 8719 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3992841 is about 1998.2094484813. The cubic root of 3992841 is about 158.6453469420.

It can be divided in two parts, 399 and 2841, that added together give a triangular number (3240 = T₈₀).

The spelling of 3992841 in words is "three million, nine hundred ninety-two thousand, eight hundred forty-one".