84863137 has 2 divisors, whose sum is σ = 84863138. Its totient is φ = 84863136.

The previous prime is 84863131. The next prime is 84863161. The reversal of 84863137 is 73136848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 15374241 = 8336^2 + 3921^2 .

It is a cyclic number.

It is not a de Polignac number, because 84863137 - 2²³ = 76474529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84863137.

It is not a weakly prime, because it can be changed into another prime (84863131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42431568 + 42431569.

It is an arithmetic number, because the mean of its divisors is an integer number (42431569).

Almost surely, 2^84863137 is an apocalyptic number.

It is an amenable number.

84863137 is a deficient number, since it is larger than the sum of its proper divisors (1).

84863137 is an equidigital number, since it uses as much as digits as its factorization.

84863137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 84863137 is about 9212.1190287577. The cubic root of 84863137 is about 439.4468548371.

The spelling of 84863137 in words is "eighty-four million, eight hundred sixty-three thousand, one hundred thirty-seven".