47016187 has 2 divisors, whose sum is σ = 47016188. Its totient is φ = 47016186.

The previous prime is 47016173. The next prime is 47016197. The reversal of 47016187 is 78161074.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47016187 - 2⁷ = 47016059 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is equal to p_2832595 and since 47016187 and 2832595 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47016197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23508093 + 23508094.

It is an arithmetic number, because the mean of its divisors is an integer number (23508094).

Almost surely, 2^47016187 is an apocalyptic number.

47016187 is a deficient number, since it is larger than the sum of its proper divisors (1).

47016187 is an equidigital number, since it uses as much as digits as its factorization.

47016187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 47016187 is about 6856.8350570799. The cubic root of 47016187 is about 360.9240330939.

The spelling of 47016187 in words is "forty-seven million, sixteen thousand, one hundred eighty-seven".