85243671 has 48 divisors (see below), whose sum is σ = 138320000. Its totient is φ = 52278048.

The previous prime is 85243649. The next prime is 85243699. The reversal of 85243671 is 17634258.

It is not a de Polignac number, because 85243671 - 2⁹ = 85243159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85243271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 170580 + ... + 171078.

Almost surely, 2^85243671 is an apocalyptic number.

85243671 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

85243671 is a deficient number, since it is larger than the sum of its proper divisors (53076329).

85243671 is a wasteful number, since it uses less digits than its factorization.

85243671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 558 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 85243671 is about 9232.7499153827. The cubic root of 85243671 is about 440.1027153449.

The spelling of 85243671 in words is "eighty-five million, two hundred forty-three thousand, six hundred seventy-one".