74224717 has 8 divisors (see below), whose sum is σ = 87753600. Its totient is φ = 61427184.

The previous prime is 74224693. The next prime is 74224727. The reversal of 74224717 is 71742247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74224717 - 2⁷ = 74224589 is a prime.

It is a super-2 number, since 2×74224717² = 11018617227460178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74224727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182617 + ... + 183022.

It is an arithmetic number, because the mean of its divisors is an integer number (10969200).

Almost surely, 2^74224717 is an apocalyptic number.

It is an amenable number.

74224717 is a deficient number, since it is larger than the sum of its proper divisors (13528883).

74224717 is a wasteful number, since it uses less digits than its factorization.

74224717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365675.

The product of its digits is 21952, while the sum is 34.

The square root of 74224717 is about 8615.3767764387. The cubic root of 74224717 is about 420.2581878118.

The spelling of 74224717 in words is "seventy-four million, two hundred twenty-four thousand, seven hundred seventeen".