85679229 has 4 divisors (see below), whose sum is σ = 114238976. Its totient is φ = 57119484.

The previous prime is 85679221. The next prime is 85679233. The reversal of 85679229 is 92297658.

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 85679229 - 2³ = 85679221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85679221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14279869 + ... + 14279874.

It is an arithmetic number, because the mean of its divisors is an integer number (28559744).

Almost surely, 2^85679229 is an apocalyptic number.

It is an amenable number.

85679229 is a deficient number, since it is larger than the sum of its proper divisors (28559747).

85679229 is a wasteful number, since it uses less digits than its factorization.

85679229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28559746.

The product of its digits is 544320, while the sum is 48.

The square root of 85679229 is about 9256.3075251420. The cubic root of 85679229 is about 440.8510199613.

The spelling of 85679229 in words is "eighty-five million, six hundred seventy-nine thousand, two hundred twenty-nine".