74508479 has 4 divisors (see below), whose sum is σ = 74532984. Its totient is φ = 74483976.

The previous prime is 74508463. The next prime is 74508509. The reversal of 74508479 is 97480547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97480547 = 2203 ⋅44249.

It is a cyclic number.

It is not a de Polignac number, because 74508479 - 2⁴ = 74508463 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 (74508079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6917 + ... + 14030.

It is an arithmetic number, because the mean of its divisors is an integer number (18633246).

Almost surely, 2^74508479 is an apocalyptic number.

74508479 is a deficient number, since it is larger than the sum of its proper divisors (24505).

74508479 is a wasteful number, since it uses less digits than its factorization.

74508479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24504.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 74508479 is about 8631.8294121235. The cubic root of 74508479 is about 420.7930575142.

The spelling of 74508479 in words is "seventy-four million, five hundred eight thousand, four hundred seventy-nine".