85190293 has 4 divisors (see below), whose sum is σ = 85208800. Its totient is φ = 85171788.

The previous prime is 85190291. The next prime is 85190309. The reversal of 85190293 is 39209158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 85190293 - 2¹ = 85190291 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 (85190291) 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, 3646 + ... + 13552.

It is an arithmetic number, because the mean of its divisors is an integer number (21302200).

Almost surely, 2^85190293 is an apocalyptic number.

It is an amenable number.

85190293 is a deficient number, since it is larger than the sum of its proper divisors (18507).

85190293 is an equidigital number, since it uses as much as digits as its factorization.

85190293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18506.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 85190293 is about 9229.8587746509. The cubic root of 85190293 is about 440.0108347883.

The spelling of 85190293 in words is "eighty-five million, one hundred ninety thousand, two hundred ninety-three".