84250913 has 2 divisors, whose sum is σ = 84250914. Its totient is φ = 84250912.

The previous prime is 84250897. The next prime is 84250927. The reversal of 84250913 is 31905248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51165409 + 33085504 = 7153^2 + 5752^2 .

It is a cyclic number.

It is not a de Polignac number, because 84250913 - 2⁴ = 84250897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84250913.

It is not a weakly prime, because it can be changed into another prime (84250213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42125456 + 42125457.

It is an arithmetic number, because the mean of its divisors is an integer number (42125457).

Almost surely, 2^84250913 is an apocalyptic number.

It is an amenable number.

84250913 is a deficient number, since it is larger than the sum of its proper divisors (1).

84250913 is an equidigital number, since it uses as much as digits as its factorization.

84250913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 84250913 is about 9178.8296094873. The cubic root of 84250913 is about 438.3875433379.

The spelling of 84250913 in words is "eighty-four million, two hundred fifty thousand, nine hundred thirteen".