74933947 has 4 divisors (see below), whose sum is σ = 81746136. Its totient is φ = 68121760.

The previous prime is 74933899. The next prime is 74933981.

It is a happy number.

74933947 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74933947 - 2¹⁹ = 74409659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74933897 and 74933906.

It is not an unprimeable number, because it can be changed into a prime (74933347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3406078 + ... + 3406099.

It is an arithmetic number, because the mean of its divisors is an integer number (20436534).

Almost surely, 2^74933947 is an apocalyptic number.

74933947 is a deficient number, since it is larger than the sum of its proper divisors (6812189).

74933947 is a wasteful number, since it uses less digits than its factorization.

74933947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812188.

The product of its digits is 571536, while the sum is 46.

The square root of 74933947 is about 8656.4396260818. The cubic root of 74933947 is about 421.5924934932.

The spelling of 74933947 in words is "seventy-four million, nine hundred thirty-three thousand, nine hundred forty-seven".