85419775 has 24 divisors (see below), whose sum is σ = 121862240. Its totient is φ = 58181760.

The previous prime is 85419773. The next prime is 85419779. The reversal of 85419775 is 57791458.

It is a happy number.

It is not a de Polignac number, because 85419775 - 2¹ = 85419773 is a prime.

It is a super-2 number, since 2×85419775² = 14593075922101250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85419773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25921 + ... + 29029.

Almost surely, 2^85419775 is an apocalyptic number.

85419775 is a deficient number, since it is larger than the sum of its proper divisors (36442465).

85419775 is a wasteful number, since it uses less digits than its factorization.

85419775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283 (or 3278 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The square root of 85419775 is about 9242.2819151982. The cubic root of 85419775 is about 440.4055747337.

The spelling of 85419775 in words is "eighty-five million, four hundred nineteen thousand, seven hundred seventy-five".