3863121 has 4 divisors (see below), whose sum is σ = 5150832. Its totient is φ = 2575412.

The previous prime is 3863107. The next prime is 3863173. The reversal of 3863121 is 1213683.

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.

It is a cyclic number.

It is not a de Polignac number, because 3863121 - 2⁷ = 3862993 is a prime.

It is an Ulam number.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 3863091 and 3863100.

It is not an unprimeable number, because it can be changed into a prime (3863521) 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, 643851 + ... + 643856.

It is an arithmetic number, because the mean of its divisors is an integer number (1287708).

Almost surely, 2^3863121 is an apocalyptic number.

It is an amenable number.

3863121 is a deficient number, since it is larger than the sum of its proper divisors (1287711).

3863121 is a wasteful number, since it uses less digits than its factorization.

3863121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287710.

The product of its digits is 864, while the sum is 24.

The square root of 3863121 is about 1965.4823835385. The cubic root of 3863121 is about 156.9083674254.

The spelling of 3863121 in words is "three million, eight hundred sixty-three thousand, one hundred twenty-one".