3821255 has 4 divisors (see below), whose sum is σ = 4585512. Its totient is φ = 3057000.

The previous prime is 3821239. The next prime is 3821263. The reversal of 3821255 is 5521283.

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

It is not a de Polignac number, because 3821255 - 2⁴ = 3821239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382121 + ... + 382130.

It is an arithmetic number, because the mean of its divisors is an integer number (1146378).

Almost surely, 2^3821255 is an apocalyptic number.

3821255 is a deficient number, since it is larger than the sum of its proper divisors (764257).

3821255 is an equidigital number, since it uses as much as digits as its factorization.

3821255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764256.

The product of its digits is 2400, while the sum is 26.

The square root of 3821255 is about 1954.8030591341. The cubic root of 3821255 is about 156.3394836766.

The spelling of 3821255 in words is "three million, eight hundred twenty-one thousand, two hundred fifty-five".