74407273 has 4 divisors (see below), whose sum is σ = 74456208. Its totient is φ = 74358340.

The previous prime is 74407271. The next prime is 74407279. The reversal of 74407273 is 37270447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74407273 - 2¹ = 74407271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74407271) 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, 22111 + ... + 25252.

It is an arithmetic number, because the mean of its divisors is an integer number (18614052).

Almost surely, 2^74407273 is an apocalyptic number.

It is an amenable number.

74407273 is a deficient number, since it is larger than the sum of its proper divisors (48935).

74407273 is a wasteful number, since it uses less digits than its factorization.

74407273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48934.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 74407273 is about 8625.9650474599. The cubic root of 74407273 is about 420.6024479827.

The spelling of 74407273 in words is "seventy-four million, four hundred seven thousand, two hundred seventy-three".