84889547 has 2 divisors, whose sum is σ = 84889548. Its totient is φ = 84889546.

The previous prime is 84889537. The next prime is 84889561. The reversal of 84889547 is 74598848.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84889547 - 2²⁰ = 83840971 is a prime.

It is not a weakly prime, because it can be changed into another prime (84889537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42444773 + 42444774.

It is an arithmetic number, because the mean of its divisors is an integer number (42444774).

Almost surely, 2^84889547 is an apocalyptic number.

84889547 is a deficient number, since it is larger than the sum of its proper divisors (1).

84889547 is an equidigital number, since it uses as much as digits as its factorization.

84889547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2580480, while the sum is 53.

The square root of 84889547 is about 9213.5523550908. The cubic root of 84889547 is about 439.4924364176.

The spelling of 84889547 in words is "eighty-four million, eight hundred eighty-nine thousand, five hundred forty-seven".