3902860 has 48 divisors (see below), whose sum is σ = 9356256. Its totient is φ = 1354752.

The previous prime is 3902851. The next prime is 3902861. The reversal of 3902860 is 682093.

It is not an unprimeable number, because it can be changed into a prime (3902861) 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, 3979 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (194922).

Almost surely, 2^3902860 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 3902860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4678128).

3902860 is an abundant number, since it is smaller than the sum of its proper divisors (5453396).

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

3902860 is a wasteful number, since it uses less digits than its factorization.

3902860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3902860 is about 1975.5657417560. The cubic root of 3902860 is about 157.4445593061. Note that the first 3 decimals are identical.

The spelling of 3902860 in words is "three million, nine hundred two thousand, eight hundred sixty".