3892820 has 24 divisors (see below), whose sum is σ = 8316000. Its totient is φ = 1530272.

The previous prime is 3892817. The next prime is 3892829. The reversal of 3892820 is 282983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3892829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470 + ... + 2829.

It is an arithmetic number, because the mean of its divisors is an integer number (346500).

Almost surely, 2^3892820 is an apocalyptic number.

It is an amenable number.

3892820 is an abundant number, since it is smaller than the sum of its proper divisors (4423180).

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

3892820 is a wasteful number, since it uses less digits than its factorization.

3892820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3892820 is about 1973.0230611932. The cubic root of 3892820 is about 157.3094361068.

The spelling of 3892820 in words is "three million, eight hundred ninety-two thousand, eight hundred twenty".