85303631 has 8 divisors (see below), whose sum is σ = 97591200. Its totient is φ = 73041408.

The previous prime is 85303613. The next prime is 85303633. The reversal of 85303631 is 13630358.

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 85303631 - 2¹⁴ = 85287247 is a prime.

It is a super-2 number, since 2×85303631² = 14553418923568322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85303594 and 85303603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85303633) 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 7 ways as a sum of consecutive naturals, for example, 1535 + ... + 13151.

It is an arithmetic number, because the mean of its divisors is an integer number (12198900).

Almost surely, 2^85303631 is an apocalyptic number.

85303631 is a deficient number, since it is larger than the sum of its proper divisors (12287569).

85303631 is a wasteful number, since it uses less digits than its factorization.

85303631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12673.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 85303631 is about 9235.9964811600. The cubic root of 85303631 is about 440.2058798916.

Adding to 85303631 its reverse (13630358), we get a palindrome (98933989).

The spelling of 85303631 in words is "eighty-five million, three hundred three thousand, six hundred thirty-one".