74509393 has 8 divisors (see below), whose sum is σ = 89635520. Its totient is φ = 60503760.

The previous prime is 74509367. The next prime is 74509433. The reversal of 74509393 is 39390547.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74509393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74509313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279978 + ... + 280243.

It is an arithmetic number, because the mean of its divisors is an integer number (11204440).

Almost surely, 2^74509393 is an apocalyptic number.

It is an amenable number.

74509393 is a deficient number, since it is larger than the sum of its proper divisors (15126127).

74509393 is a wasteful number, since it uses less digits than its factorization.

74509393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560247.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 74509393 is about 8631.8823555468. The cubic root of 74509393 is about 420.7947781385.

The spelling of 74509393 in words is "seventy-four million, five hundred nine thousand, three hundred ninety-three".