74638505 has 8 divisors (see below), whose sum is σ = 89942400. Its totient is φ = 59460016.

The previous prime is 74638477. The next prime is 74638511. The reversal of 74638505 is 50583647.

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 74638505 - 2¹² = 74634409 is a prime.

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, 30035 + ... + 32424.

It is an arithmetic number, because the mean of its divisors is an integer number (11242800).

Almost surely, 2^74638505 is an apocalyptic number.

It is an amenable number.

74638505 is a deficient number, since it is larger than the sum of its proper divisors (15303895).

74638505 is a wasteful number, since it uses less digits than its factorization.

74638505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62703.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 74638505 is about 8639.3579043816. The cubic root of 74638505 is about 421.0376929445.

The spelling of 74638505 in words is "seventy-four million, six hundred thirty-eight thousand, five hundred five".