74388805 has 8 divisors (see below), whose sum is σ = 89550072. Its totient is φ = 59322048.

The previous prime is 74388773. The next prime is 74388851. The reversal of 74388805 is 50888347.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4532641 + 69856164 = 2129^2 + 8358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74388805 - 2⁵ = 74388773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21882 + ... + 25051.

It is an arithmetic number, because the mean of its divisors is an integer number (11193759).

Almost surely, 2^74388805 is an apocalyptic number.

It is an amenable number.

74388805 is a deficient number, since it is larger than the sum of its proper divisors (15161267).

74388805 is a wasteful number, since it uses less digits than its factorization.

74388805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47255.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 74388805 is about 8624.8944921083. The cubic root of 74388805 is about 420.5676470444.

The spelling of 74388805 in words is "seventy-four million, three hundred eighty-eight thousand, eight hundred five".