47824879 has 4 divisors (see below), whose sum is σ = 47887840. Its totient is φ = 47761920.

The previous prime is 47824853. The next prime is 47824883. The reversal of 47824879 is 97842874.

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 47824879 - 2⁹ = 47824367 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 (47824079) 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, 30327 + ... + 31864.

It is an arithmetic number, because the mean of its divisors is an integer number (11971960).

Almost surely, 2^47824879 is an apocalyptic number.

47824879 is a deficient number, since it is larger than the sum of its proper divisors (62961).

47824879 is an equidigital number, since it uses as much as digits as its factorization.

47824879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62960.

The product of its digits is 903168, while the sum is 49.

The square root of 47824879 is about 6915.5534124175. The cubic root of 47824879 is about 362.9816133584.

The spelling of 47824879 in words is "forty-seven million, eight hundred twenty-four thousand, eight hundred seventy-nine".