4918723 has 4 divisors (see below), whose sum is σ = 4938120. Its totient is φ = 4899328.

The previous prime is 4918721. The next prime is 4918733. The reversal of 4918723 is 3278194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3278194 = 2 ⋅1639097.

It is a cyclic number.

It is not a de Polignac number, because 4918723 - 2¹ = 4918721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4918721) 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 3 ways as a sum of consecutive naturals, for example, 9313 + ... + 9826.

It is an arithmetic number, because the mean of its divisors is an integer number (1234530).

Almost surely, 2^4918723 is an apocalyptic number.

4918723 is a deficient number, since it is larger than the sum of its proper divisors (19397).

4918723 is a wasteful number, since it uses less digits than its factorization.

4918723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19396.

The product of its digits is 12096, while the sum is 34.

The square root of 4918723 is about 2217.8194245700. The cubic root of 4918723 is about 170.0659836131.

The spelling of 4918723 in words is "four million, nine hundred eighteen thousand, seven hundred twenty-three".