85534437 has 4 divisors (see below), whose sum is σ = 114045920. Its totient is φ = 57022956.

The previous prime is 85534391. The next prime is 85534441. The reversal of 85534437 is 73443558.

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 de Polignac number, because none of the positive numbers 2^k-85534437 is a prime.

It is a super-2 number, since 2×85534437² = 14632279825813938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85534395 and 85534404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85534457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14255737 + ... + 14255742.

It is an arithmetic number, because the mean of its divisors is an integer number (28511480).

Almost surely, 2^85534437 is an apocalyptic number.

It is an amenable number.

85534437 is a deficient number, since it is larger than the sum of its proper divisors (28511483).

85534437 is a wasteful number, since it uses less digits than its factorization.

85534437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28511482.

The product of its digits is 201600, while the sum is 39.

The square root of 85534437 is about 9248.4829566800. The cubic root of 85534437 is about 440.6025439791.

The spelling of 85534437 in words is "eighty-five million, five hundred thirty-four thousand, four hundred thirty-seven".