85787293 has 8 divisors (see below), whose sum is σ = 88273080. Its totient is φ = 83320320.

The previous prime is 85787291. The next prime is 85787311. The reversal of 85787293 is 39278758.

It can be written as a sum of positive squares in 4 ways, for example, as 76729 + 85710564 = 277^2 + 9258^2 .

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 85787293 - 2¹ = 85787291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85787291) 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, 4821 + ... + 13957.

It is an arithmetic number, because the mean of its divisors is an integer number (11034135).

Almost surely, 2^85787293 is an apocalyptic number.

It is an amenable number.

85787293 is a deficient number, since it is larger than the sum of its proper divisors (2485787).

85787293 is a wasteful number, since it uses less digits than its factorization.

85787293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9407.

The product of its digits is 846720, while the sum is 49.

The square root of 85787293 is about 9262.1430025670. The cubic root of 85787293 is about 441.0362850494.

The spelling of 85787293 in words is "eighty-five million, seven hundred eighty-seven thousand, two hundred ninety-three".