85354631 has 4 divisors (see below), whose sum is σ = 89847000. Its totient is φ = 80862264.

The previous prime is 85354609. The next prime is 85354667. The reversal of 85354631 is 13645358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85354631 - 2²⁶ = 18245767 is a prime.

It is a super-2 number, since 2×85354631² = 14570826066292322, 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 = 85354591 and 85354600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85354601) 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, 2246156 + ... + 2246193.

It is an arithmetic number, because the mean of its divisors is an integer number (22461750).

Almost surely, 2^85354631 is an apocalyptic number.

85354631 is a deficient number, since it is larger than the sum of its proper divisors (4492369).

85354631 is a wasteful number, since it uses less digits than its factorization.

85354631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492368.

The product of its digits is 43200, while the sum is 35.

The square root of 85354631 is about 9238.7570051387. The cubic root of 85354631 is about 440.2935902152.

Adding to 85354631 its reverse (13645358), we get a palindrome (98999989).

The spelling of 85354631 in words is "eighty-five million, three hundred fifty-four thousand, six hundred thirty-one".