47520994 has 4 divisors (see below), whose sum is σ = 71281494. Its totient is φ = 23760496.

The previous prime is 47520989. The next prime is 47520997. The reversal of 47520994 is 49902574.

47520994 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.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 21967969 = 5055^2 + 4687^2 .

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 not an unprimeable number, because it can be changed into a prime (47520997) 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 as a sum of consecutive naturals, namely, 11880247 + ... + 11880250.

Almost surely, 2^47520994 is an apocalyptic number.

47520994 is a deficient number, since it is larger than the sum of its proper divisors (23760500).

47520994 is a wasteful number, since it uses less digits than its factorization.

47520994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760499.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 47520994 is about 6893.5472726311. The cubic root of 47520994 is about 362.2111696910.

The spelling of 47520994 in words is "forty-seven million, five hundred twenty thousand, nine hundred ninety-four".