389886043 has 2 divisors, whose sum is σ = 389886044. Its totient is φ = 389886042.

The previous prime is 389886019. The next prime is 389886071. The reversal of 389886043 is 340688983.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389886043 is a prime.

It is a super-2 number, since 2×389886043² = 304022253052395698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (389886743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194943021 + 194943022.

It is an arithmetic number, because the mean of its divisors is an integer number (194943022).

Almost surely, 2^389886043 is an apocalyptic number.

389886043 is a deficient number, since it is larger than the sum of its proper divisors (1).

389886043 is an equidigital number, since it uses as much as digits as its factorization.

389886043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 389886043 is about 19745.5322288360. The cubic root of 389886043 is about 730.5431892602.

The spelling of 389886043 in words is "three hundred eighty-nine million, eight hundred eighty-six thousand, forty-three".