84749953 has 2 divisors, whose sum is σ = 84749954. Its totient is φ = 84749952.

The previous prime is 84749933. The next prime is 84749969. The reversal of 84749953 is 35994748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75550864 + 9199089 = 8692^2 + 3033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84749953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84749897 and 84749906.

It is not a weakly prime, because it can be changed into another prime (84749933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42374976 + 42374977.

It is an arithmetic number, because the mean of its divisors is an integer number (42374977).

Almost surely, 2^84749953 is an apocalyptic number.

It is an amenable number.

84749953 is a deficient number, since it is larger than the sum of its proper divisors (1).

84749953 is an equidigital number, since it uses as much as digits as its factorization.

84749953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 84749953 is about 9205.9737670710. The cubic root of 84749953 is about 439.2514009829.

The spelling of 84749953 in words is "eighty-four million, seven hundred forty-nine thousand, nine hundred fifty-three".