84250277 has 2 divisors, whose sum is σ = 84250278. Its totient is φ = 84250276.

The previous prime is 84250267. The next prime is 84250279. The reversal of 84250277 is 77205248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83156161 + 1094116 = 9119^2 + 1046^2 .

It is a cyclic number.

It is not a de Polignac number, because 84250277 - 2⁶ = 84250213 is a prime.

Together with 84250279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84250279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42125138 + 42125139.

It is an arithmetic number, because the mean of its divisors is an integer number (42125139).

Almost surely, 2^84250277 is an apocalyptic number.

It is an amenable number.

84250277 is a deficient number, since it is larger than the sum of its proper divisors (1).

84250277 is an equidigital number, since it uses as much as digits as its factorization.

84250277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 84250277 is about 9178.7949644820. The cubic root of 84250277 is about 438.3864402235.

The spelling of 84250277 in words is "eighty-four million, two hundred fifty thousand, two hundred seventy-seven".