3992427 has 6 divisors (see below), whose sum is σ = 5766852. Its totient is φ = 2661612.

The previous prime is 3992419. The next prime is 3992441. The reversal of 3992427 is 7242993.

It is not a de Polignac number, because 3992427 - 2³ = 3992419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3992391 and 3992400.

It is not an unprimeable number, because it can be changed into a prime (3992407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221793 + ... + 221810.

It is an arithmetic number, because the mean of its divisors is an integer number (961142).

Almost surely, 2^3992427 is an apocalyptic number.

3992427 is a deficient number, since it is larger than the sum of its proper divisors (1774425).

3992427 is a wasteful number, since it uses less digits than its factorization.

3992427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443609 (or 443606 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 3992427 is about 1998.1058530518. The cubic root of 3992427 is about 158.6398636747.

The spelling of 3992427 in words is "three million, nine hundred ninety-two thousand, four hundred twenty-seven".