47319979 has 8 divisors (see below), whose sum is σ = 54211808. Its totient is φ = 40461120.

The previous prime is 47319971. The next prime is 47319983. The reversal of 47319979 is 97991374.

It is a happy number.

47319979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47319979 - 2³ = 47319971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47319971) 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 7 ways as a sum of consecutive naturals, for example, 5082 + ... + 10975.

It is an arithmetic number, because the mean of its divisors is an integer number (6776476).

Almost surely, 2^47319979 is an apocalyptic number.

47319979 is a deficient number, since it is larger than the sum of its proper divisors (6891829).

47319979 is a wasteful number, since it uses less digits than its factorization.

47319979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16485.

The product of its digits is 428652, while the sum is 49.

The square root of 47319979 is about 6878.9518823728. The cubic root of 47319979 is about 361.6997270870.

The spelling of 47319979 in words is "forty-seven million, three hundred nineteen thousand, nine hundred seventy-nine".