3921093 has 12 divisors (see below), whose sum is σ = 6178848. Its totient is φ = 2376360.

The previous prime is 3921089. The next prime is 3921121. The reversal of 3921093 is 3901293.

It is not a de Polignac number, because 3921093 - 2² = 3921089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 19705 + ... + 19902.

It is an arithmetic number, because the mean of its divisors is an integer number (514904).

Almost surely, 2^3921093 is an apocalyptic number.

3921093 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3921093 is a deficient number, since it is larger than the sum of its proper divisors (2257755).

3921093 is a wasteful number, since it uses less digits than its factorization.

3921093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39624 (or 39621 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 3921093 is about 1980.1749922671. The cubic root of 3921093 is about 157.6893565304.

It can be divided in two parts, 392 and 1093, that added together give a triangular number (1485 = T₅₄).

The spelling of 3921093 in words is "three million, nine hundred twenty-one thousand, ninety-three".