84748913 has 2 divisors, whose sum is σ = 84748914. Its totient is φ = 84748912.

The previous prime is 84748889. The next prime is 84748919. The reversal of 84748913 is 31984748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76615009 + 8133904 = 8753^2 + 2852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84748913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84748919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42374456 + 42374457.

It is an arithmetic number, because the mean of its divisors is an integer number (42374457).

Almost surely, 2^84748913 is an apocalyptic number.

It is an amenable number.

84748913 is a deficient number, since it is larger than the sum of its proper divisors (1).

84748913 is an equidigital number, since it uses as much as digits as its factorization.

84748913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 84748913 is about 9205.9172818356. The cubic root of 84748913 is about 439.2496042333.

The spelling of 84748913 in words is "eighty-four million, seven hundred forty-eight thousand, nine hundred thirteen".