47079791 has 4 divisors (see below), whose sum is σ = 51359784. Its totient is φ = 42799800.

The previous prime is 47079787. The next prime is 47079811. The reversal of 47079791 is 19797074.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47079791 - 2² = 47079787 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 (47079191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139980 + ... + 2140001.

It is an arithmetic number, because the mean of its divisors is an integer number (12839946).

Almost surely, 2^47079791 is an apocalyptic number.

47079791 is a deficient number, since it is larger than the sum of its proper divisors (4279993).

47079791 is a wasteful number, since it uses less digits than its factorization.

47079791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279992.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 47079791 is about 6861.4714894110. The cubic root of 47079791 is about 361.0867137197.

The spelling of 47079791 in words is "forty-seven million, seventy-nine thousand, seven hundred ninety-one".