2662891 has 8 divisors (see below), whose sum is σ = 3320064. Its totient is φ = 2074920.

The previous prime is 2662883. The next prime is 2662901. The reversal of 2662891 is 1982662.

It is a happy number.

2662891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2662891 - 2³ = 2662883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662811) 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, 17215 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (415008).

2^2662891 is an apocalyptic number.

2662891 is a deficient number, since it is larger than the sum of its proper divisors (657173).

2662891 is a wasteful number, since it uses less digits than its factorization.

2662891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34601.

The product of its digits is 10368, while the sum is 34.

The square root of 2662891 is about 1631.8366952609. The cubic root of 2662891 is about 138.6067764310.

It can be divided in two parts, 2662 and 891, that added together give a palindrome (3553).

The spelling of 2662891 in words is "two million, six hundred sixty-two thousand, eight hundred ninety-one".