74870547 has 8 divisors (see below), whose sum is σ = 103269840. Its totient is φ = 48192480.

The previous prime is 74870531. The next prime is 74870581. The reversal of 74870547 is 74507847.

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

It is not a de Polignac number, because 74870547 - 2⁴ = 74870531 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 74870499 and 74870508.

It is not an unprimeable number, because it can be changed into a prime (74870447) 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, 430204 + ... + 430377.

It is an arithmetic number, because the mean of its divisors is an integer number (12908730).

Almost surely, 2^74870547 is an apocalyptic number.

74870547 is a deficient number, since it is larger than the sum of its proper divisors (28399293).

74870547 is a wasteful number, since it uses less digits than its factorization.

74870547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860613.

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 74870547 is about 8652.7768375245. The cubic root of 74870547 is about 421.4735598325.

The spelling of 74870547 in words is "seventy-four million, eight hundred seventy thousand, five hundred forty-seven".