85530879 has 24 divisors (see below), whose sum is σ = 144641952. Its totient is φ = 47681280.

The previous prime is 85530877. The next prime is 85530901. The reversal of 85530879 is 97803558.

It is not a de Polignac number, because 85530879 - 2¹ = 85530877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85530877) 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, 13974 + ... + 19139.

It is an arithmetic number, because the mean of its divisors is an integer number (6026748).

Almost surely, 2^85530879 is an apocalyptic number.

85530879 is a deficient number, since it is larger than the sum of its proper divisors (59111073).

85530879 is a wasteful number, since it uses less digits than its factorization.

85530879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33167 (or 33164 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 85530879 is about 9248.2905988080. The cubic root of 85530879 is about 440.5964346051.

The spelling of 85530879 in words is "eighty-five million, five hundred thirty thousand, eight hundred seventy-nine".