84037189 has 2 divisors, whose sum is σ = 84037190. Its totient is φ = 84037188.

The previous prime is 84037153. The next prime is 84037223. The reversal of 84037189 is 98173048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62489025 + 21548164 = 7905^2 + 4642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84037189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84037139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42018594 + 42018595.

It is an arithmetic number, because the mean of its divisors is an integer number (42018595).

Almost surely, 2^84037189 is an apocalyptic number.

It is an amenable number.

84037189 is a deficient number, since it is larger than the sum of its proper divisors (1).

84037189 is an equidigital number, since it uses as much as digits as its factorization.

84037189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 84037189 is about 9167.1799916877. The cubic root of 84037189 is about 438.0165353807.

The spelling of 84037189 in words is "eighty-four million, thirty-seven thousand, one hundred eighty-nine".