853499641 has 2 divisors, whose sum is σ = 853499642. Its totient is φ = 853499640.

The previous prime is 853499623. The next prime is 853499653. The reversal of 853499641 is 146994358.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555592041 + 297907600 = 23571^2 + 17260^2 .

It is a cyclic number.

It is not a de Polignac number, because 853499641 - 2¹³ = 853491449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (853499681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426749820 + 426749821.

It is an arithmetic number, because the mean of its divisors is an integer number (426749821).

Almost surely, 2^853499641 is an apocalyptic number.

It is an amenable number.

853499641 is a deficient number, since it is larger than the sum of its proper divisors (1).

853499641 is an equidigital number, since it uses as much as digits as its factorization.

853499641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 853499641 is about 29214.7161718200. The cubic root of 853499641 is about 948.5664958017.

The spelling of 853499641 in words is "eight hundred fifty-three million, four hundred ninety-nine thousand, six hundred forty-one".