85313537 has 8 divisors (see below), whose sum is σ = 86994600. Its totient is φ = 83649024.

The previous prime is 85313533. The next prime is 85313539. The reversal of 85313537 is 73531358.

It can be written as a sum of positive squares in 4 ways, for example, as 839056 + 84474481 = 916^2 + 9191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85313537 - 2² = 85313533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85313497 and 85313506.

It is not an unprimeable number, because it can be changed into a prime (85313533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6539 + ... + 14607.

It is an arithmetic number, because the mean of its divisors is an integer number (10874325).

Almost surely, 2^85313537 is an apocalyptic number.

It is an amenable number.

85313537 is a deficient number, since it is larger than the sum of its proper divisors (1681063).

85313537 is a wasteful number, since it uses less digits than its factorization.

85313537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275.

The product of its digits is 37800, while the sum is 35.

The square root of 85313537 is about 9236.5327369095. The cubic root of 85313537 is about 440.2229190673. Note that the first 3 decimals are identical.

The spelling of 85313537 in words is "eighty-five million, three hundred thirteen thousand, five hundred thirty-seven".