85932389 has 4 divisors (see below), whose sum is σ = 88254924. Its totient is φ = 83609856.

The previous prime is 85932367. The next prime is 85932419. The reversal of 85932389 is 98323958.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66422500 + 19509889 = 8150^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 85932389 - 2¹⁶ = 85866853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85932359) 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, 1161212 + ... + 1161285.

It is an arithmetic number, because the mean of its divisors is an integer number (22063731).

Almost surely, 2^85932389 is an apocalyptic number.

It is an amenable number.

85932389 is a deficient number, since it is larger than the sum of its proper divisors (2322535).

85932389 is a wasteful number, since it uses less digits than its factorization.

85932389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322534.

The product of its digits is 466560, while the sum is 47.

The square root of 85932389 is about 9269.9724379310. The cubic root of 85932389 is about 441.2847933252.

The spelling of 85932389 in words is "eighty-five million, nine hundred thirty-two thousand, three hundred eighty-nine".