84910913 has 2 divisors, whose sum is σ = 84910914. Its totient is φ = 84910912.

The previous prime is 84910897. The next prime is 84910919. The reversal of 84910913 is 31901948.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55011889 + 29899024 = 7417^2 + 5468^2 .

It is a cyclic number.

It is not a de Polignac number, because 84910913 - 2⁴ = 84910897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84910919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42455456 + 42455457.

It is an arithmetic number, because the mean of its divisors is an integer number (42455457).

Almost surely, 2^84910913 is an apocalyptic number.

It is an amenable number.

84910913 is a deficient number, since it is larger than the sum of its proper divisors (1).

84910913 is an equidigital number, since it uses as much as digits as its factorization.

84910913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 84910913 is about 9214.7117697734. The cubic root of 84910913 is about 439.5293055337.

The spelling of 84910913 in words is "eighty-four million, nine hundred ten thousand, nine hundred thirteen".