47847794 has 4 divisors (see below), whose sum is σ = 71771694. Its totient is φ = 23923896.

The previous prime is 47847781. The next prime is 47847803. The reversal of 47847794 is 49774874.

47847794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49774874 = 2 ⋅24887437.

It can be written as a sum of positive squares in only one way, i.e., 47265625 + 582169 = 6875^2 + 763^2 .

It is a super-2 number, since 2×47847794² = 4578822781332872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11961947 + ... + 11961950.

Almost surely, 2^47847794 is an apocalyptic number.

47847794 is a deficient number, since it is larger than the sum of its proper divisors (23923900).

47847794 is a wasteful number, since it uses less digits than its factorization.

47847794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23923899.

The product of its digits is 1580544, while the sum is 50.

The square root of 47847794 is about 6917.2099866926. The cubic root of 47847794 is about 363.0395775793.

The spelling of 47847794 in words is "forty-seven million, eight hundred forty-seven thousand, seven hundred ninety-four".