85924369 has 4 divisors (see below), whose sum is σ = 86067940. Its totient is φ = 85780800.

The previous prime is 85924357. The next prime is 85924381. The reversal of 85924369 is 96342958.

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

It is an interprime number because it is at equal distance from previous prime (85924357) and next prime (85924381).

It can be written as a sum of positive squares in 2 ways, for example, as 32341969 + 53582400 = 5687^2 + 7320^2 .

It is a cyclic number.

It is not a de Polignac number, because 85924369 - 2⁵ = 85924337 is a prime.

It is a super-2 number, since 2×85924369² = 14765994376096322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85924469) 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, 70884 + ... + 72085.

It is an arithmetic number, because the mean of its divisors is an integer number (21516985).

Almost surely, 2^85924369 is an apocalyptic number.

It is an amenable number.

85924369 is a deficient number, since it is larger than the sum of its proper divisors (143571).

85924369 is a wasteful number, since it uses less digits than its factorization.

85924369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143570.

The product of its digits is 466560, while the sum is 46.

The square root of 85924369 is about 9269.5398483420. The cubic root of 85924369 is about 441.2710646478.

The spelling of 85924369 in words is "eighty-five million, nine hundred twenty-four thousand, three hundred sixty-nine".