72170060 has 12 divisors (see below), whose sum is σ = 151557168. Its totient is φ = 28868016.

The previous prime is 72170057. The next prime is 72170069. The reversal of 72170060 is 6007127.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72170069) 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, 1804232 + ... + 1804271.

It is an arithmetic number, because the mean of its divisors is an integer number (12629764).

Almost surely, 2^72170060 is an apocalyptic number.

It is an amenable number.

72170060 is an abundant number, since it is smaller than the sum of its proper divisors (79387108).

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

72170060 is a wasteful number, since it uses less digits than its factorization.

72170060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608512 (or 3608510 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 72170060 is about 8495.2963456256. The cubic root of 72170060 is about 416.3440432361.

Adding to 72170060 its reverse (6007127), we get a palindrome (78177187).

The spelling of 72170060 in words is "seventy-two million, one hundred seventy thousand, sixty".