3920123 has 4 divisors (see below), whose sum is σ = 3975408. Its totient is φ = 3864840.

The previous prime is 3920089. The next prime is 3920131. The reversal of 3920123 is 3210293.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3920123 - 2¹⁰ = 3919099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3920095 and 3920104.

It is not an unprimeable number, because it can be changed into a prime (3920153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27536 + ... + 27677.

It is an arithmetic number, because the mean of its divisors is an integer number (993852).

Almost surely, 2^3920123 is an apocalyptic number.

3920123 is a deficient number, since it is larger than the sum of its proper divisors (55285).

3920123 is an equidigital number, since it uses as much as digits as its factorization.

3920123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55284.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3920123 is about 1979.9300492694. The cubic root of 3920123 is about 157.6763523935.

The spelling of 3920123 in words is "three million, nine hundred twenty thousand, one hundred twenty-three".