74209273 has 8 divisors (see below), whose sum is σ = 74977056. Its totient is φ = 73444800.

The previous prime is 74209253. The next prime is 74209279. The reversal of 74209273 is 37290247.

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 74209273 - 2⁵ = 74209241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74209279) 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, 83793 + ... + 84673.

It is an arithmetic number, because the mean of its divisors is an integer number (9372132).

Almost surely, 2^74209273 is an apocalyptic number.

It is an amenable number.

74209273 is a deficient number, since it is larger than the sum of its proper divisors (767783).

74209273 is a wasteful number, since it uses less digits than its factorization.

74209273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 74209273 is about 8614.4804254232. The cubic root of 74209273 is about 420.2290379637.

The spelling of 74209273 in words is "seventy-four million, two hundred nine thousand, two hundred seventy-three".