2621271 has 8 divisors (see below), whose sum is σ = 3504384. Its totient is φ = 1742840.

The previous prime is 2621263. The next prime is 2621279. The reversal of 2621271 is 1721262.

It is an interprime number because it is at equal distance from previous prime (2621263) and next prime (2621279).

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 2621271 - 2³ = 2621263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (438048).

2^2621271 is an apocalyptic number.

2621271 is a deficient number, since it is larger than the sum of its proper divisors (883113).

2621271 is a wasteful number, since it uses less digits than its factorization.

2621271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its digits is 336, while the sum is 21.

The square root of 2621271 is about 1619.0339712310. The cubic root of 2621271 is about 137.8808570494.

Subtracting from 2621271 its reverse (1721262), we obtain a palindrome (900009).

The spelling of 2621271 in words is "two million, six hundred twenty-one thousand, two hundred seventy-one".