74473405 has 4 divisors (see below), whose sum is σ = 89368092. Its totient is φ = 59578720.

The previous prime is 74473403. The next prime is 74473409. The reversal of 74473405 is 50437447.

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 13586596 + 60886809 = 3686^2 + 7803^2 .

It is not a de Polignac number, because 74473405 - 2¹ = 74473403 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 (74473403) 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, 7447336 + ... + 7447345.

It is an arithmetic number, because the mean of its divisors is an integer number (22342023).

Almost surely, 2^74473405 is an apocalyptic number.

It is an amenable number.

74473405 is a deficient number, since it is larger than the sum of its proper divisors (14894687).

74473405 is a wasteful number, since it uses less digits than its factorization.

74473405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894686.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 74473405 is about 8629.7975063150. The cubic root of 74473405 is about 420.7270193382.

The spelling of 74473405 in words is "seventy-four million, four hundred seventy-three thousand, four hundred five".