74397718 has 4 divisors (see below), whose sum is σ = 111596580. Its totient is φ = 37198858.

The previous prime is 74397707. The next prime is 74397721. The reversal of 74397718 is 81779347.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18599428 + ... + 18599431.

It is an arithmetic number, because the mean of its divisors is an integer number (27899145).

Almost surely, 2^74397718 is an apocalyptic number.

74397718 is a deficient number, since it is larger than the sum of its proper divisors (37198862).

74397718 is a wasteful number, since it uses less digits than its factorization.

74397718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37198861.

The product of its digits is 296352, while the sum is 46.

The square root of 74397718 is about 8625.4111786048. The cubic root of 74397718 is about 420.5844433430.

The spelling of 74397718 in words is "seventy-four million, three hundred ninety-seven thousand, seven hundred eighteen".