2952721 has 2 divisors, whose sum is σ = 2952722. Its totient is φ = 2952720.

The previous prime is 2952689. The next prime is 2952737. The reversal of 2952721 is 1272592.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2822400 + 130321 = 1680^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2952721 - 2⁵ = 2952689 is a prime.

It is a super-2 number, since 2×2952721² = 17437122607682, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

2952721 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2952721.

It is not a weakly prime, because it can be changed into another prime (2952791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1476360 + 1476361.

It is an arithmetic number, because the mean of its divisors is an integer number (1476361).

2^2952721 is an apocalyptic number.

It is an amenable number.

2952721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2952721 is an equidigital number, since it uses as much as digits as its factorization.

2952721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 2952721 is about 1718.3483348844. The cubic root of 2952721 is about 143.4632959825.

The spelling of 2952721 in words is "two million, nine hundred fifty-two thousand, seven hundred twenty-one".