853499653 has 2 divisors, whose sum is σ = 853499654. Its totient is φ = 853499652.

The previous prime is 853499641. The next prime is 853499659. The reversal of 853499653 is 356994358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613156644 + 240343009 = 24762^2 + 15503^2 .

It is a cyclic number.

It is not a de Polignac number, because 853499653 - 2¹³ = 853491461 is a prime.

It is a super-2 number, since 2×853499653² = 1456923315342240818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 853499653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853499659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426749826 + 426749827.

It is an arithmetic number, because the mean of its divisors is an integer number (426749827).

Almost surely, 2^853499653 is an apocalyptic number.

It is an amenable number.

853499653 is a deficient number, since it is larger than the sum of its proper divisors (1).

853499653 is an equidigital number, since it uses as much as digits as its factorization.

853499653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 52.

The square root of 853499653 is about 29214.7163771959. The cubic root of 853499653 is about 948.5665002472.

The spelling of 853499653 in words is "eight hundred fifty-three million, four hundred ninety-nine thousand, six hundred fifty-three".