74609273 has 4 divisors (see below), whose sum is σ = 74678628. Its totient is φ = 74539920.

The previous prime is 74609261. The next prime is 74609287. The reversal of 74609273 is 37290647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 37982569 = 6052^2 + 6163^2 .

It is a cyclic number.

It is not a de Polignac number, because 74609273 - 2¹⁰ = 74608249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74609203) 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, 33038 + ... + 35223.

It is an arithmetic number, because the mean of its divisors is an integer number (18669657).

Almost surely, 2^74609273 is an apocalyptic number.

It is an amenable number.

74609273 is a deficient number, since it is larger than the sum of its proper divisors (69355).

74609273 is a wasteful number, since it uses less digits than its factorization.

74609273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69354.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 74609273 is about 8637.6659463075. The cubic root of 74609273 is about 420.9827196169.

The spelling of 74609273 in words is "seventy-four million, six hundred nine thousand, two hundred seventy-three".