74475773 has 4 divisors (see below), whose sum is σ = 74765820. Its totient is φ = 74185728.

The previous prime is 74475769. The next prime is 74475781. The reversal of 74475773 is 37757447.

It is a happy number.

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 65966884 + 8508889 = 8122^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 74475773 - 2² = 74475769 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 (74475473) 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, 144638 + ... + 145151.

It is an arithmetic number, because the mean of its divisors is an integer number (18691455).

Almost surely, 2^74475773 is an apocalyptic number.

It is an amenable number.

74475773 is a deficient number, since it is larger than the sum of its proper divisors (290047).

74475773 is a wasteful number, since it uses less digits than its factorization.

74475773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290046.

The product of its digits is 576240, while the sum is 44.

The square root of 74475773 is about 8629.9347042721. The cubic root of 74475773 is about 420.7314785185.

The spelling of 74475773 in words is "seventy-four million, four hundred seventy-five thousand, seven hundred seventy-three".