85671123 has 4 divisors (see below), whose sum is σ = 114228168. Its totient is φ = 57114080.

The previous prime is 85671119. The next prime is 85671139. The reversal of 85671123 is 32117658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85671123 - 2² = 85671119 is a prime.

It is a super-2 number, since 2×85671123² = 14679082632162258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85671193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14278518 + ... + 14278523.

It is an arithmetic number, because the mean of its divisors is an integer number (28557042).

Almost surely, 2^85671123 is an apocalyptic number.

85671123 is a deficient number, since it is larger than the sum of its proper divisors (28557045).

85671123 is a wasteful number, since it uses less digits than its factorization.

85671123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28557044.

The product of its digits is 10080, while the sum is 33.

The square root of 85671123 is about 9255.8696511997. The cubic root of 85671123 is about 440.8371167430.

The spelling of 85671123 in words is "eighty-five million, six hundred seventy-one thousand, one hundred twenty-three".