74859853 has 2 divisors, whose sum is σ = 74859854. Its totient is φ = 74859852.

The previous prime is 74859839. The next prime is 74859859. The reversal of 74859853 is 35895847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74701449 + 158404 = 8643^2 + 398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74859853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74859797 and 74859806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74859859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37429926 + 37429927.

It is an arithmetic number, because the mean of its divisors is an integer number (37429927).

Almost surely, 2^74859853 is an apocalyptic number.

It is an amenable number.

74859853 is a deficient number, since it is larger than the sum of its proper divisors (1).

74859853 is an equidigital number, since it uses as much as digits as its factorization.

74859853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 49.

The square root of 74859853 is about 8652.1588635438. The cubic root of 74859853 is about 421.4534920709.

The spelling of 74859853 in words is "seventy-four million, eight hundred fifty-nine thousand, eight hundred fifty-three".