74115905 has 8 divisors (see below), whose sum is σ = 91108584. Its totient is φ = 57846400.

The previous prime is 74115901. The next prime is 74115911. The reversal of 74115905 is 50951147.

It can be written as a sum of positive squares in 4 ways, for example, as 1024 + 74114881 = 32^2 + 8609^2 .

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

It is not a de Polignac number, because 74115905 - 2² = 74115901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74115901) by changing a digit.

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, 180566 + ... + 180975.

It is an arithmetic number, because the mean of its divisors is an integer number (11388573).

Almost surely, 2^74115905 is an apocalyptic number.

It is an amenable number.

74115905 is a deficient number, since it is larger than the sum of its proper divisors (16992679).

74115905 is a wasteful number, since it uses less digits than its factorization.

74115905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361587.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 74115905 is about 8609.0594724395. The cubic root of 74115905 is about 420.0527239178.

The spelling of 74115905 in words is "seventy-four million, one hundred fifteen thousand, nine hundred five".