718049923 has 4 divisors (see below), whose sum is σ = 722869200. Its totient is φ = 713230648.

The previous prime is 718049887. The next prime is 718049939. The reversal of 718049923 is 329940817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329940817 = 41 ⋅8047337.

It is a cyclic number.

It is not a de Polignac number, because 718049923 - 2²⁵ = 684495491 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 718049923.

It is not an unprimeable number, because it can be changed into a prime (718049023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2409415 + ... + 2409712.

It is an arithmetic number, because the mean of its divisors is an integer number (180717300).

Almost surely, 2^718049923 is an apocalyptic number.

718049923 is a deficient number, since it is larger than the sum of its proper divisors (4819277).

718049923 is a wasteful number, since it uses less digits than its factorization.

718049923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819276.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 718049923 is about 26796.4535526625. The cubic root of 718049923 is about 895.4710432022.

The spelling of 718049923 in words is "seven hundred eighteen million, forty-nine thousand, nine hundred twenty-three".