3823121 has 4 divisors (see below), whose sum is σ = 3904512. Its totient is φ = 3741732.

The previous prime is 3823117. The next prime is 3823139. The reversal of 3823121 is 1213283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1213283 = 19 ⋅63857.

It is a cyclic number.

It is not a de Polignac number, because 3823121 - 2² = 3823117 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3823093 and 3823102.

It is not an unprimeable number, because it can be changed into a prime (3823151) 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, 40625 + ... + 40718.

It is an arithmetic number, because the mean of its divisors is an integer number (976128).

Almost surely, 2^3823121 is an apocalyptic number.

It is an amenable number.

3823121 is a deficient number, since it is larger than the sum of its proper divisors (81391).

3823121 is an equidigital number, since it uses as much as digits as its factorization.

3823121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81390.

The product of its digits is 288, while the sum is 20.

The square root of 3823121 is about 1955.2802868131. The cubic root of 3823121 is about 156.3649274993.

The spelling of 3823121 in words is "three million, eight hundred twenty-three thousand, one hundred twenty-one".