84563137 has 2 divisors, whose sum is σ = 84563138. Its totient is φ = 84563136.

The previous prime is 84563131. The next prime is 84563173. The reversal of 84563137 is 73136548.

Together with next prime (84563173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83101456 + 1461681 = 9116^2 + 1209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84563137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84563096 and 84563105.

It is not a weakly prime, because it can be changed into another prime (84563131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42281568 + 42281569.

It is an arithmetic number, because the mean of its divisors is an integer number (42281569).

Almost surely, 2^84563137 is an apocalyptic number.

It is an amenable number.

84563137 is a deficient number, since it is larger than the sum of its proper divisors (1).

84563137 is an equidigital number, since it uses as much as digits as its factorization.

84563137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 84563137 is about 9195.8217142352. The cubic root of 84563137 is about 438.9284133561.

The spelling of 84563137 in words is "eighty-four million, five hundred sixty-three thousand, one hundred thirty-seven".