3889992 has 32 divisors (see below), whose sum is σ = 9820800. Its totient is φ = 1283904.

The previous prime is 3889969. The next prime is 3889993. The reversal of 3889992 is 2999883.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3889993) 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, 1873 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (306900).

Almost surely, 2^3889992 is an apocalyptic number.

It is an amenable number.

3889992 is an abundant number, since it is smaller than the sum of its proper divisors (5930808).

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

3889992 is a wasteful number, since it uses less digits than its factorization.

3889992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1601 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 3889992 is about 1972.3062642501. The cubic root of 3889992 is about 157.2713335782.

The spelling of 3889992 in words is "three million, eight hundred eighty-nine thousand, nine hundred ninety-two".