2948581 has 4 divisors (see below), whose sum is σ = 2977312. Its totient is φ = 2919852.

The previous prime is 2948579. The next prime is 2948587. The reversal of 2948581 is 1858492.

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 2948581 - 2¹ = 2948579 is a prime.

It is a super-2 number, since 2×2948581² = 17388259827122, which contains 22 as substring.

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 2948581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2948587) 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, 14211 + ... + 14416.

It is an arithmetic number, because the mean of its divisors is an integer number (744328).

2^2948581 is an apocalyptic number.

It is an amenable number.

2948581 is a deficient number, since it is larger than the sum of its proper divisors (28731).

2948581 is a wasteful number, since it uses less digits than its factorization.

2948581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28730.

The product of its digits is 23040, while the sum is 37.

The square root of 2948581 is about 1717.1432671737. The cubic root of 2948581 is about 143.3962148227.

The spelling of 2948581 in words is "two million, nine hundred forty-eight thousand, five hundred eighty-one".