85539023 has 2 divisors, whose sum is σ = 85539024. Its totient is φ = 85539022.

The previous prime is 85538993. The next prime is 85539037. The reversal of 85539023 is 32093558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85539023 - 2¹² = 85534927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85539073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42769511 + 42769512.

It is an arithmetic number, because the mean of its divisors is an integer number (42769512).

Almost surely, 2^85539023 is an apocalyptic number.

85539023 is a deficient number, since it is larger than the sum of its proper divisors (1).

85539023 is an equidigital number, since it uses as much as digits as its factorization.

85539023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 85539023 is about 9248.7308859108. The cubic root of 85539023 is about 440.6104182623.

It can be divided in two parts, 8553 and 9023, that added together give a cube (17576 = 26³).

The spelling of 85539023 in words is "eighty-five million, five hundred thirty-nine thousand, twenty-three".