3921123 has 8 divisors (see below), whose sum is σ = 5280336. Its totient is φ = 2588000.

The previous prime is 3921121. The next prime is 3921139. The reversal of 3921123 is 3211293.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3921123 - 2¹ = 3921121 is a prime.

It is a super-2 number, since 2×3921123² = 30750411162258, which contains 22 as substring.

3921123 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3921123.

It is not an unprimeable number, because it can be changed into a prime (3921121) 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, 6168 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (660042).

Almost surely, 2^3921123 is an apocalyptic number.

3921123 is a deficient number, since it is larger than the sum of its proper divisors (1359213).

3921123 is a wasteful number, since it uses less digits than its factorization.

3921123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13045.

The product of its digits is 324, while the sum is 21.

The square root of 3921123 is about 1980.1825673407. The cubic root of 3921123 is about 157.6897586861.

The spelling of 3921123 in words is "three million, nine hundred twenty-one thousand, one hundred twenty-three".