2738723 has 4 divisors (see below), whose sum is σ = 2949408. Its totient is φ = 2528040.

The previous prime is 2738719. The next prime is 2738753. The reversal of 2738723 is 3278372.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2738723 - 2² = 2738719 is a prime.

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 2738723.

It is not an unprimeable number, because it can be changed into a prime (2738753) 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, 105323 + ... + 105348.

It is an arithmetic number, because the mean of its divisors is an integer number (737352).

2^2738723 is an apocalyptic number.

2738723 is a deficient number, since it is larger than the sum of its proper divisors (210685).

2738723 is a wasteful number, since it uses less digits than its factorization.

2738723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210684.

The product of its digits is 14112, while the sum is 32.

The square root of 2738723 is about 1654.9087588142. The cubic root of 2738723 is about 139.9101975109.

The spelling of 2738723 in words is "two million, seven hundred thirty-eight thousand, seven hundred twenty-three".