3891426 has 32 divisors (see below), whose sum is σ = 9704448. Its totient is φ = 1010640.

The previous prime is 3891403. The next prime is 3891431. The reversal of 3891426 is 6241983.

3891426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3750 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

Almost surely, 2^3891426 is an apocalyptic number.

3891426 is an abundant number, since it is smaller than the sum of its proper divisors (5813022).

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

3891426 is a wasteful number, since it uses less digits than its factorization.

3891426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446.

The product of its digits is 10368, while the sum is 33.

The square root of 3891426 is about 1972.6697645577. The cubic root of 3891426 is about 157.2906566158.

The spelling of 3891426 in words is "three million, eight hundred ninety-one thousand, four hundred twenty-six".