47912999 has 4 divisors (see below), whose sum is σ = 48698520. Its totient is φ = 47127480.

The previous prime is 47912993. The next prime is 47913013. The reversal of 47912999 is 99921974.

47912999 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47912999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47912993) 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, 392669 + ... + 392790.

It is an arithmetic number, because the mean of its divisors is an integer number (12174630).

Almost surely, 2^47912999 is an apocalyptic number.

47912999 is a deficient number, since it is larger than the sum of its proper divisors (785521).

47912999 is an equidigital number, since it uses as much as digits as its factorization.

47912999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785520.

The product of its digits is 367416, while the sum is 50.

The square root of 47912999 is about 6921.9216262538. The cubic root of 47912999 is about 363.2044145114.

The spelling of 47912999 in words is "forty-seven million, nine hundred twelve thousand, nine hundred ninety-nine".