85873537 has 4 divisors (see below), whose sum is σ = 87870640. Its totient is φ = 83876436.

The previous prime is 85873531. The next prime is 85873547. The reversal of 85873537 is 73537858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85873537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85873531) 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, 998487 + ... + 998572.

It is an arithmetic number, because the mean of its divisors is an integer number (21967660).

Almost surely, 2^85873537 is an apocalyptic number.

It is an amenable number.

85873537 is a deficient number, since it is larger than the sum of its proper divisors (1997103).

85873537 is a wasteful number, since it uses less digits than its factorization.

85873537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997102.

The product of its digits is 705600, while the sum is 46.

The square root of 85873537 is about 9266.7975590276. The cubic root of 85873537 is about 441.1840302952.

The spelling of 85873537 in words is "eighty-five million, eight hundred seventy-three thousand, five hundred thirty-seven".