3955321 has 4 divisors (see below), whose sum is σ = 4082944. Its totient is φ = 3827700.

The previous prime is 3955319. The next prime is 3955331. The reversal of 3955321 is 1235593.

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 3955321 - 2¹ = 3955319 is a prime.

It is a Duffinian number.

3955321 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3955321.

It is not an unprimeable number, because it can be changed into a prime (3955331) by changing a digit.

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, 63765 + ... + 63826.

It is an arithmetic number, because the mean of its divisors is an integer number (1020736).

Almost surely, 2^3955321 is an apocalyptic number.

3955321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3955321 is a deficient number, since it is larger than the sum of its proper divisors (127623).

3955321 is a wasteful number, since it uses less digits than its factorization.

3955321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127622.

The product of its digits is 4050, while the sum is 28.

The square root of 3955321 is about 1988.7988837487. The cubic root of 3955321 is about 158.1468617932.

The spelling of 3955321 in words is "three million, nine hundred fifty-five thousand, three hundred twenty-one".