47100019 has 4 divisors (see below), whose sum is σ = 47118240. Its totient is φ = 47081800.

The previous prime is 47099989. The next prime is 47100029. The reversal of 47100019 is 91000174.

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 47100019 - 2⁷ = 47099891 is a prime.

It is a super-2 number, since 2×47100019² = 4436823579600722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) 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 (47100029) 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, 4432 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (11779560).

Almost surely, 2^47100019 is an apocalyptic number.

47100019 is a deficient number, since it is larger than the sum of its proper divisors (18221).

47100019 is a wasteful number, since it uses less digits than its factorization.

47100019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18220.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 47100019 is about 6862.9453589549. The cubic root of 47100019 is about 361.1384203795.

The spelling of 47100019 in words is "forty-seven million, one hundred thousand, nineteen".