84183457 has 2 divisors, whose sum is σ = 84183458. Its totient is φ = 84183456.

The previous prime is 84183403. The next prime is 84183461. The reversal of 84183457 is 75438148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 112896 = 9169^2 + 336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84183457 is a prime.

It is not a weakly prime, because it can be changed into another prime (84183467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42091728 + 42091729.

It is an arithmetic number, because the mean of its divisors is an integer number (42091729).

Almost surely, 2^84183457 is an apocalyptic number.

It is an amenable number.

84183457 is a deficient number, since it is larger than the sum of its proper divisors (1).

84183457 is an equidigital number, since it uses as much as digits as its factorization.

84183457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 40.

The square root of 84183457 is about 9175.1543311271. The cubic root of 84183457 is about 438.2705128913.

The spelling of 84183457 in words is "eighty-four million, one hundred eighty-three thousand, four hundred fifty-seven".