2956321 has 4 divisors (see below), whose sum is σ = 2970544. Its totient is φ = 2942100.

The previous prime is 2956307. The next prime is 2956357. The reversal of 2956321 is 1236592.

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 a de Polignac number, because none of the positive numbers 2^k-2956321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2956321.

It is not an unprimeable number, because it can be changed into a prime (2956301) 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, 6795 + ... + 7216.

It is an arithmetic number, because the mean of its divisors is an integer number (742636).

2^2956321 is an apocalyptic number.

It is an amenable number.

2956321 is a deficient number, since it is larger than the sum of its proper divisors (14223).

2956321 is a wasteful number, since it uses less digits than its factorization.

2956321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14222.

The product of its digits is 3240, while the sum is 28.

The square root of 2956321 is about 1719.3955333198. The cubic root of 2956321 is about 143.5215764762.

It can be divided in two parts, 29563 and 21, that added together give a square (29584 = 172²).

The spelling of 2956321 in words is "two million, nine hundred fifty-six thousand, three hundred twenty-one".