47212579 has 4 divisors (see below), whose sum is σ = 47251984. Its totient is φ = 47173176.

The previous prime is 47212577. The next prime is 47212589. The reversal of 47212579 is 97521274.

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 47212579 - 2¹ = 47212577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47212577) 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, 17847 + ... + 20320.

It is an arithmetic number, because the mean of its divisors is an integer number (11812996).

Almost surely, 2^47212579 is an apocalyptic number.

47212579 is a deficient number, since it is larger than the sum of its proper divisors (39405).

47212579 is a wasteful number, since it uses less digits than its factorization.

47212579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39404.

The product of its digits is 35280, while the sum is 37.

The square root of 47212579 is about 6871.1410260596. The cubic root of 47212579 is about 361.4258753367.

The spelling of 47212579 in words is "forty-seven million, two hundred twelve thousand, five hundred seventy-nine".