74396917 has 4 divisors (see below), whose sum is σ = 85025056. Its totient is φ = 63768780.

The previous prime is 74396909. The next prime is 74396953. The reversal of 74396917 is 71969347.

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 74396917 - 2³ = 74396909 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 (74396957) 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, 5314059 + ... + 5314072.

It is an arithmetic number, because the mean of its divisors is an integer number (21256264).

Almost surely, 2^74396917 is an apocalyptic number.

It is an amenable number.

74396917 is a deficient number, since it is larger than the sum of its proper divisors (10628139).

74396917 is a wasteful number, since it uses less digits than its factorization.

74396917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628138.

The product of its digits is 285768, while the sum is 46.

The square root of 74396917 is about 8625.3647459107. The cubic root of 74396917 is about 420.5829339358.

The spelling of 74396917 in words is "seventy-four million, three hundred ninety-six thousand, nine hundred seventeen".