79985358 has 12 divisors (see below), whose sum is σ = 173301648. Its totient is φ = 26661780.

The previous prime is 79985351. The next prime is 79985359. The reversal of 79985358 is 85358997.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79985351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2221798 + ... + 2221833.

It is an arithmetic number, because the mean of its divisors is an integer number (14441804).

Almost surely, 2^79985358 is an apocalyptic number.

79985358 is an abundant number, since it is smaller than the sum of its proper divisors (93316290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79985358 is a wasteful number, since it uses less digits than its factorization.

79985358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443639 (or 4443636 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 79985358 is about 8943.4533598605. The cubic root of 79985358 is about 430.8606487085.

The spelling of 79985358 in words is "seventy-nine million, nine hundred eighty-five thousand, three hundred fifty-eight".