74509959 has 8 divisors (see below), whose sum is σ = 99781360. Its totient is φ = 49455936.

The previous prime is 74509951. The next prime is 74510021. The reversal of 74509959 is 95990547.

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

It is not a de Polignac number, because 74509959 - 2³ = 74509951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74509951) 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, 53542 + ... + 54915.

It is an arithmetic number, because the mean of its divisors is an integer number (12472670).

Almost surely, 2^74509959 is an apocalyptic number.

74509959 is a deficient number, since it is larger than the sum of its proper divisors (25271401).

74509959 is a wasteful number, since it uses less digits than its factorization.

74509959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108689.

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 74509959 is about 8631.9151409175. The cubic root of 74509959 is about 420.7958436383.

The spelling of 74509959 in words is "seventy-four million, five hundred nine thousand, nine hundred fifty-nine".