47859979 has 4 divisors (see below), whose sum is σ = 47886984. Its totient is φ = 47832976.

The previous prime is 47859971. The next prime is 47859983. The reversal of 47859979 is 97995874.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97995874 = 2 ⋅48997937.

It is a cyclic number.

It is not a de Polignac number, because 47859979 - 2³ = 47859971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47859971) 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, 10642 + ... + 14455.

It is an arithmetic number, because the mean of its divisors is an integer number (11971746).

Almost surely, 2^47859979 is an apocalyptic number.

47859979 is a deficient number, since it is larger than the sum of its proper divisors (27005).

47859979 is a wasteful number, since it uses less digits than its factorization.

47859979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27004.

The product of its digits is 5715360, while the sum is 58.

The square root of 47859979 is about 6918.0907048116. The cubic root of 47859979 is about 363.0703923876.

The spelling of 47859979 in words is "forty-seven million, eight hundred fifty-nine thousand, nine hundred seventy-nine".