74481447 has 8 divisors (see below), whose sum is σ = 99356544. Its totient is φ = 49630328.

The previous prime is 74481443. The next prime is 74481469. The reversal of 74481447 is 74418447.

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 74481447 - 2² = 74481443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74481443) 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, 3328 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (12419568).

Almost surely, 2^74481447 is an apocalyptic number.

74481447 is a deficient number, since it is larger than the sum of its proper divisors (24875097).

74481447 is a wasteful number, since it uses less digits than its factorization.

74481447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11989.

The product of its digits is 100352, while the sum is 39.

The square root of 74481447 is about 8630.2634374624. The cubic root of 74481447 is about 420.7421628421.

The spelling of 74481447 in words is "seventy-four million, four hundred eighty-one thousand, four hundred forty-seven".