47017929 has 16 divisors (see below), whose sum is σ = 72012800. Its totient is φ = 26730000.

The previous prime is 47017891. The next prime is 47017931. The reversal of 47017929 is 92971074.

It is not a de Polignac number, because 47017929 - 2²⁰ = 45969353 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47017969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (4500800).

Almost surely, 2^47017929 is an apocalyptic number.

It is an amenable number.

47017929 is a deficient number, since it is larger than the sum of its proper divisors (24994871).

47017929 is a wasteful number, since it uses less digits than its factorization.

47017929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 47017929 is about 6856.9620824385. The cubic root of 47017929 is about 360.9284905793.

The spelling of 47017929 in words is "forty-seven million, seventeen thousand, nine hundred twenty-nine".