2691393 has 8 divisors (see below), whose sum is σ = 3656448. Its totient is φ = 1760304.

The previous prime is 2691373. The next prime is 2691401. The reversal of 2691393 is 3931962.

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

It is not a de Polignac number, because 2691393 - 2⁶ = 2691329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2691373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8305 + ... + 8622.

It is an arithmetic number, because the mean of its divisors is an integer number (457056).

2^2691393 is an apocalyptic number.

It is an amenable number.

2691393 is a deficient number, since it is larger than the sum of its proper divisors (965055).

2691393 is a wasteful number, since it uses less digits than its factorization.

2691393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16983.

The product of its digits is 8748, while the sum is 33.

The square root of 2691393 is about 1640.5465552675. The cubic root of 2691393 is about 139.0995439670.

It can be divided in two parts, 26 and 91393, that added together give a palindrome (91419).

The spelling of 2691393 in words is "two million, six hundred ninety-one thousand, three hundred ninety-three".