853642747 has 2 divisors, whose sum is σ = 853642748. Its totient is φ = 853642746.

The previous prime is 853642729. The next prime is 853642763. The reversal of 853642747 is 747246358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853642747 - 2⁷ = 853642619 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 853642697 and 853642706.

It is not a weakly prime, because it can be changed into another prime (853640747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426821373 + 426821374.

It is an arithmetic number, because the mean of its divisors is an integer number (426821374).

Almost surely, 2^853642747 is an apocalyptic number.

853642747 is a deficient number, since it is larger than the sum of its proper divisors (1).

853642747 is an equidigital number, since it uses as much as digits as its factorization.

853642747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 46.

The square root of 853642747 is about 29217.1652800199. The cubic root of 853642747 is about 948.6195081149.

The spelling of 853642747 in words is "eight hundred fifty-three million, six hundred forty-two thousand, seven hundred forty-seven".