3890928 has 40 divisors (see below), whose sum is σ = 10162048. Its totient is φ = 1282752.

The previous prime is 3890927. The next prime is 3890951. The reversal of 3890928 is 8290983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890927) 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, 4551 + ... + 5337.

Almost surely, 2^3890928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3890928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5081024).

3890928 is an abundant number, since it is smaller than the sum of its proper divisors (6271120).

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

3890928 is a wasteful number, since it uses less digits than its factorization.

3890928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 3890928 is about 1972.5435356412. The cubic root of 3890928 is about 157.2839466429.

The spelling of 3890928 in words is "three million, eight hundred ninety thousand, nine hundred twenty-eight".