47389994 has 8 divisors (see below), whose sum is σ = 72058980. Its totient is φ = 23370336.

The previous prime is 47389981. The next prime is 47389997. The reversal of 47389994 is 49998374.

It is a happy number.

47389994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 45064369 + 2325625 = 6713^2 + 1525^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47389997) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 162149 + ... + 162440.

Almost surely, 2^47389994 is an apocalyptic number.

47389994 is a deficient number, since it is larger than the sum of its proper divisors (24668986).

47389994 is a wasteful number, since it uses less digits than its factorization.

47389994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324664.

The product of its digits is 1959552, while the sum is 53.

The square root of 47389994 is about 6884.0390760076. The cubic root of 47389994 is about 361.8780303965.

The spelling of 47389994 in words is "forty-seven million, three hundred eighty-nine thousand, nine hundred ninety-four".