47889319 has 2 divisors, whose sum is σ = 47889320. Its totient is φ = 47889318.

The previous prime is 47889311. The next prime is 47889337. The reversal of 47889319 is 91398874.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47889319 - 2³ = 47889311 is a prime.

It is a super-2 number, since 2×47889319² = 4586773748567522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47889311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23944659 + 23944660.

It is an arithmetic number, because the mean of its divisors is an integer number (23944660).

Almost surely, 2^47889319 is an apocalyptic number.

47889319 is a deficient number, since it is larger than the sum of its proper divisors (1).

47889319 is an equidigital number, since it uses as much as digits as its factorization.

47889319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 47889319 is about 6920.2109071906. The cubic root of 47889319 is about 363.1445692502.

The spelling of 47889319 in words is "forty-seven million, eight hundred eighty-nine thousand, three hundred nineteen".