718442093 has 4 divisors (see below), whose sum is σ = 718812288. Its totient is φ = 718071900.

The previous prime is 718442071. The next prime is 718442147. The reversal of 718442093 is 390244817.

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 718442093 - 2⁶ = 718442029 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 (718442063) 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, 182171 + ... + 186072.

It is an arithmetic number, because the mean of its divisors is an integer number (179703072).

Almost surely, 2^718442093 is an apocalyptic number.

It is an amenable number.

718442093 is a deficient number, since it is larger than the sum of its proper divisors (370195).

718442093 is a wasteful number, since it uses less digits than its factorization.

718442093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370194.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 718442093 is about 26803.7701266072. The cubic root of 718442093 is about 895.6340369599.

It can be divided in two parts, 71844 and 2093, that added together give a palindrome (73937).

The spelling of 718442093 in words is "seven hundred eighteen million, four hundred forty-two thousand, ninety-three".