2707993 has 4 divisors (see below), whose sum is σ = 2781220. Its totient is φ = 2634768.

The previous prime is 2707987. The next prime is 2708053. The reversal of 2707993 is 3997072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2569609 + 138384 = 1603^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2707993 - 2⁵ = 2707961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 73189 = 2707993 / (2 + 7 + 0 + 7 + 9 + 9 + 3).

It is a Duffinian number.

2707993 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2702993) 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, 36558 + ... + 36631.

It is an arithmetic number, because the mean of its divisors is an integer number (695305).

2^2707993 is an apocalyptic number.

It is an amenable number.

2707993 is a deficient number, since it is larger than the sum of its proper divisors (73227).

2707993 is an equidigital number, since it uses as much as digits as its factorization.

2707993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73226.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 2707993 is about 1645.5980675730. The cubic root of 2707993 is about 139.3849378584.

It can be divided in two parts, 27079 and 93, that added together give a palindrome (27172).

The spelling of 2707993 in words is "two million, seven hundred seven thousand, nine hundred ninety-three".