3821245 has 4 divisors (see below), whose sum is σ = 4585500. Its totient is φ = 3056992.

The previous prime is 3821239. The next prime is 3821263. The reversal of 3821245 is 5421283.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2442969 + 1378276 = 1563^2 + 1174^2 .

It is a cyclic number.

It is not a de Polignac number, because 3821245 - 2⁷ = 3821117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382120 + ... + 382129.

It is an arithmetic number, because the mean of its divisors is an integer number (1146375).

Almost surely, 2^3821245 is an apocalyptic number.

It is an amenable number.

3821245 is a deficient number, since it is larger than the sum of its proper divisors (764255).

3821245 is an equidigital number, since it uses as much as digits as its factorization.

3821245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764254.

The product of its digits is 1920, while the sum is 25.

The square root of 3821245 is about 1954.8005013300. The cubic root of 3821245 is about 156.3393472994.

The spelling of 3821245 in words is "three million, eight hundred twenty-one thousand, two hundred forty-five".