85902193 has 6 divisors (see below), whose sum is σ = 93018534. Its totient is φ = 79294176.

The previous prime is 85902163. The next prime is 85902199. The reversal of 85902193 is 39120958.

It can be written as a sum of positive squares in 3 ways, for example, as 4397409 + 81504784 = 2097^2 + 9028^2 .

It is not a de Polignac number, because 85902193 - 2⁹ = 85901681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85902199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253980 + ... + 254317.

It is an arithmetic number, because the mean of its divisors is an integer number (15503089).

Almost surely, 2^85902193 is an apocalyptic number.

It is an amenable number.

85902193 is a deficient number, since it is larger than the sum of its proper divisors (7116341).

85902193 is a wasteful number, since it uses less digits than its factorization.

85902193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508323 (or 508310 counting only the distinct ones).

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

The square root of 85902193 is about 9268.3435952709. The cubic root of 85902193 is about 441.2330992090.

The spelling of 85902193 in words is "eighty-five million, nine hundred two thousand, one hundred ninety-three".