2739993 has 4 divisors (see below), whose sum is σ = 3653328. Its totient is φ = 1826660.

The previous prime is 2739991. The next prime is 2740027. The reversal of 2739993 is 3999372.

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 2739993 - 2¹ = 2739991 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2739991) 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, 456663 + ... + 456668.

It is an arithmetic number, because the mean of its divisors is an integer number (913332).

2^2739993 is an apocalyptic number.

It is an amenable number.

2739993 is a deficient number, since it is larger than the sum of its proper divisors (913335).

2739993 is an equidigital number, since it uses as much as digits as its factorization.

2739993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913334.

The product of its digits is 91854, while the sum is 42.

The square root of 2739993 is about 1655.2924212960. The cubic root of 2739993 is about 139.9318205438.

The spelling of 2739993 in words is "two million, seven hundred thirty-nine thousand, nine hundred ninety-three".