74428271 has 8 divisors (see below), whose sum is σ = 76160304. Its totient is φ = 72708480.

The previous prime is 74428259. The next prime is 74428273. The reversal of 74428271 is 17282447.

It is a happy number.

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 74428271 - 2¹⁰ = 74427247 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 (74428273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9860 + ... + 15686.

It is an arithmetic number, because the mean of its divisors is an integer number (9520038).

Almost surely, 2^74428271 is an apocalyptic number.

74428271 is a deficient number, since it is larger than the sum of its proper divisors (1732033).

74428271 is a wasteful number, since it uses less digits than its factorization.

74428271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its digits is 25088, while the sum is 35.

The square root of 74428271 is about 8627.1821007789. The cubic root of 74428271 is about 420.6420094359.

The spelling of 74428271 in words is "seventy-four million, four hundred twenty-eight thousand, two hundred seventy-one".