3901926 has 32 divisors (see below), whose sum is σ = 9070848. Its totient is φ = 1095840.

The previous prime is 3901907. The next prime is 3901943. The reversal of 3901926 is 6291093.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3901893 and 3901902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (283464).

Almost surely, 2^3901926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3901926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4535424).

3901926 is an abundant number, since it is smaller than the sum of its proper divisors (5168922).

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

3901926 is a wasteful number, since it uses less digits than its factorization.

3901926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 3901926 is about 1975.3293396292. The cubic root of 3901926 is about 157.4319988632.

The spelling of 3901926 in words is "three million, nine hundred one thousand, nine hundred twenty-six".