47144794 has 4 divisors (see below), whose sum is σ = 70717194. Its totient is φ = 23572396.

The previous prime is 47144761. The next prime is 47144803. The reversal of 47144794 is 49744174.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49744174 = 2 ⋅24872087.

It can be written as a sum of positive squares in only one way, i.e., 46444225 + 700569 = 6815^2 + 837^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11786197 + ... + 11786200.

Almost surely, 2^47144794 is an apocalyptic number.

47144794 is a deficient number, since it is larger than the sum of its proper divisors (23572400).

47144794 is a wasteful number, since it uses less digits than its factorization.

47144794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23572399.

The product of its digits is 112896, while the sum is 40.

The square root of 47144794 is about 6866.2066674402. The cubic root of 47144794 is about 361.2528212644.

The spelling of 47144794 in words is "forty-seven million, one hundred forty-four thousand, seven hundred ninety-four".