74944947 has 16 divisors (see below), whose sum is σ = 124584192. Its totient is φ = 38932320.

The previous prime is 74944937. The next prime is 74944957.

74944947 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (74944937) and next prime (74944957).

It is not a de Polignac number, because 74944947 - 2¹⁴ = 74928563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74944896 and 74944905.

It is not an unprimeable number, because it can be changed into a prime (74944937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161988 + ... + 162449.

It is an arithmetic number, because the mean of its divisors is an integer number (7786512).

Almost surely, 2^74944947 is an apocalyptic number.

74944947 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

74944947 is a deficient number, since it is larger than the sum of its proper divisors (49639245).

74944947 is a wasteful number, since it uses less digits than its factorization.

74944947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324458.

The product of its digits is 1016064, while the sum is 48.

The square root of 74944947 is about 8657.0749679092. The cubic root of 74944947 is about 421.6131218409.

The spelling of 74944947 in words is "seventy-four million, nine hundred forty-four thousand, nine hundred forty-seven".