389853504247 has 2 divisors, whose sum is σ = 389853504248. Its totient is φ = 389853504246.

The previous prime is 389853504197. The next prime is 389853504259. The reversal of 389853504247 is 742405358983.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389853504247 - 2²⁷ = 389719286519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389853504191 and 389853504200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389853505247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194926752123 + 194926752124.

It is an arithmetic number, because the mean of its divisors is an integer number (194926752124).

Almost surely, 2^389853504247 is an apocalyptic number.

389853504247 is a deficient number, since it is larger than the sum of its proper divisors (1).

389853504247 is an equidigital number, since it uses as much as digits as its factorization.

389853504247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 389853504247 in words is "three hundred eighty-nine billion, eight hundred fifty-three million, five hundred four thousand, two hundred forty-seven".