74988385 has 8 divisors (see below), whose sum is σ = 92181096. Its totient is φ = 58527360.

The previous prime is 74988379. The next prime is 74988409. The reversal of 74988385 is 58388947.

It can be written as a sum of positive squares in 4 ways, for example, as 183184 + 74805201 = 428^2 + 8649^2 .

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

It is not a de Polignac number, because 74988385 - 2²¹ = 72891233 is a prime.

It is a Duffinian 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, 182694 + ... + 183103.

It is an arithmetic number, because the mean of its divisors is an integer number (11522637).

Almost surely, 2^74988385 is an apocalyptic number.

It is an amenable number.

74988385 is a deficient number, since it is larger than the sum of its proper divisors (17192711).

74988385 is a wasteful number, since it uses less digits than its factorization.

74988385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365843.

The product of its digits is 1935360, while the sum is 52.

The square root of 74988385 is about 8659.5834195416. The cubic root of 74988385 is about 421.6945615927.

The spelling of 74988385 in words is "seventy-four million, nine hundred eighty-eight thousand, three hundred eighty-five".