74004745 has 4 divisors (see below), whose sum is σ = 88805700. Its totient is φ = 59203792.

The previous prime is 74004737. The next prime is 74004767. The reversal of 74004745 is 54740047.

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 22581504 + 51423241 = 4752^2 + 7171^2 .

It is a cyclic number.

It is not a de Polignac number, because 74004745 - 2³ = 74004737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7400470 + ... + 7400479.

It is an arithmetic number, because the mean of its divisors is an integer number (22201425).

Almost surely, 2^74004745 is an apocalyptic number.

It is an amenable number.

74004745 is a deficient number, since it is larger than the sum of its proper divisors (14800955).

74004745 is a wasteful number, since it uses less digits than its factorization.

74004745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14800954.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 74004745 is about 8602.6010601445. The cubic root of 74004745 is about 419.8426186604.

The spelling of 74004745 in words is "seventy-four million, four thousand, seven hundred forty-five".