85674537 has 16 divisors (see below), whose sum is σ = 136689280. Its totient is φ = 52722576.

The previous prime is 85674529. The next prime is 85674539. The reversal of 85674537 is 73547658.

It is not a de Polignac number, because 85674537 - 2³ = 85674529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85674492 and 85674501.

It is not an unprimeable number, because it can be changed into a prime (85674539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121693 + ... + 122394.

It is an arithmetic number, because the mean of its divisors is an integer number (8543080).

Almost surely, 2^85674537 is an apocalyptic number.

It is an amenable number.

85674537 is a deficient number, since it is larger than the sum of its proper divisors (51014743).

85674537 is a wasteful number, since it uses less digits than its factorization.

85674537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244109 (or 244103 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 85674537 is about 9256.0540728758. The cubic root of 85674537 is about 440.8429724614.

The spelling of 85674537 in words is "eighty-five million, six hundred seventy-four thousand, five hundred thirty-seven".