74243471 has 8 divisors (see below), whose sum is σ = 82029024. Its totient is φ = 66837760.

The previous prime is 74243467. The next prime is 74243483. The reversal of 74243471 is 17434247.

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

It is a cyclic number.

It is not a de Polignac number, because 74243471 - 2² = 74243467 is a prime.

It is a super-3 number, since 3×74243471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74243461) 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, 94550 + ... + 95331.

It is an arithmetic number, because the mean of its divisors is an integer number (10253628).

Almost surely, 2^74243471 is an apocalyptic number.

74243471 is a deficient number, since it is larger than the sum of its proper divisors (7785553).

74243471 is a wasteful number, since it uses less digits than its factorization.

74243471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189921.

The product of its digits is 18816, while the sum is 32.

The square root of 74243471 is about 8616.4651104731. The cubic root of 74243471 is about 420.2935796986.

The spelling of 74243471 in words is "seventy-four million, two hundred forty-three thousand, four hundred seventy-one".