85179788 has 12 divisors (see below), whose sum is σ = 149575440. Its totient is φ = 42443952.

The previous prime is 85179781. The next prime is 85179797. The reversal of 85179788 is 88797158.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85179781) 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, 35168 + ... + 37511.

It is an arithmetic number, because the mean of its divisors is an integer number (12464620).

Almost surely, 2^85179788 is an apocalyptic number.

It is an amenable number.

85179788 is a deficient number, since it is larger than the sum of its proper divisors (64395652).

85179788 is a wasteful number, since it uses less digits than its factorization.

85179788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72976 (or 72974 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 53.

The square root of 85179788 is about 9229.2896801433. The cubic root of 85179788 is about 439.9927478144.

The spelling of 85179788 in words is "eighty-five million, one hundred seventy-nine thousand, seven hundred eighty-eight".