85293819 has 24 divisors (see below), whose sum is σ = 133008512. Its totient is φ = 52358400.

The previous prime is 85293787. The next prime is 85293833. The reversal of 85293819 is 91839258.

It is a happy number.

It is not a de Polignac number, because 85293819 - 2⁵ = 85293787 is a prime.

It is a super-2 number, since 2×85293819² = 14550071119209522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85293839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70419 + ... + 71619.

Almost surely, 2^85293819 is an apocalyptic number.

85293819 is a deficient number, since it is larger than the sum of its proper divisors (47714693).

85293819 is a wasteful number, since it uses less digits than its factorization.

85293819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1824 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 85293819 is about 9235.4652833520. The cubic root of 85293819 is about 440.1890011036.

The spelling of 85293819 in words is "eighty-five million, two hundred ninety-three thousand, eight hundred nineteen".