85838567 has 2 divisors, whose sum is σ = 85838568. Its totient is φ = 85838566.

The previous prime is 85838563. The next prime is 85838603. The reversal of 85838567 is 76583858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85838567 - 2² = 85838563 is a prime.

It is a super-2 number, since 2×85838567² = 14736519169226978, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85838563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42919283 + 42919284.

It is an arithmetic number, because the mean of its divisors is an integer number (42919284).

Almost surely, 2^85838567 is an apocalyptic number.

85838567 is a deficient number, since it is larger than the sum of its proper divisors (1).

85838567 is an equidigital number, since it uses as much as digits as its factorization.

85838567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1612800, while the sum is 50.

The square root of 85838567 is about 9264.9105230434. The cubic root of 85838567 is about 441.1241348536.

The spelling of 85838567 in words is "eighty-five million, eight hundred thirty-eight thousand, five hundred sixty-seven".