70772172 has 48 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 22995648.

The previous prime is 70772171. The next prime is 70772189. The reversal of 70772172 is 27127707.

It is not an unprimeable number, because it can be changed into a prime (70772171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141579 + ... + 142077.

It is an arithmetic number, because the mean of its divisors is an integer number (3528000).

Almost surely, 2^70772172 is an apocalyptic number.

It is an amenable number.

70772172 is an abundant number, since it is smaller than the sum of its proper divisors (98571828).

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

70772172 is a wasteful number, since it uses less digits than its factorization.

70772172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 9604, while the sum is 33.

The square root of 70772172 is about 8412.6198059820. The cubic root of 70772172 is about 413.6383922674.

Adding to 70772172 its reverse (27127707), we get a palindrome (97899879).

The spelling of 70772172 in words is "seventy million, seven hundred seventy-two thousand, one hundred seventy-two".