2921261 has 8 divisors (see below), whose sum is σ = 3429120. Its totient is φ = 2436048.

The previous prime is 2921249. The next prime is 2921273. The reversal of 2921261 is 1621292.

2921261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2921249) and next prime (2921273).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2921261 - 2⁶ = 2921197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (428640).

2^2921261 is an apocalyptic number.

It is an amenable number.

2921261 is a deficient number, since it is larger than the sum of its proper divisors (507859).

2921261 is a wasteful number, since it uses less digits than its factorization.

2921261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11323.

The product of its digits is 432, while the sum is 23.

The square root of 2921261 is about 1709.1696814535. The cubic root of 2921261 is about 142.9519619562.

The spelling of 2921261 in words is "two million, nine hundred twenty-one thousand, two hundred sixty-one".