85193769 has 4 divisors (see below), whose sum is σ = 113591696. Its totient is φ = 56795844.

The previous prime is 85193767. The next prime is 85193791. The reversal of 85193769 is 96739158.

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.

It is not a de Polignac number, because 85193769 - 2¹ = 85193767 is a prime.

It is a super-2 number, since 2×85193769² = 14515956552850722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85193761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14198959 + ... + 14198964.

It is an arithmetic number, because the mean of its divisors is an integer number (28397924).

Almost surely, 2^85193769 is an apocalyptic number.

It is an amenable number.

85193769 is a deficient number, since it is larger than the sum of its proper divisors (28397927).

85193769 is a wasteful number, since it uses less digits than its factorization.

85193769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28397926.

The product of its digits is 408240, while the sum is 48.

The square root of 85193769 is about 9230.0470746362. The cubic root of 85193769 is about 440.0168192606.

The spelling of 85193769 in words is "eighty-five million, one hundred ninety-three thousand, seven hundred sixty-nine".