72179752 has 16 divisors (see below), whose sum is σ = 136121940. Its totient is φ = 35880576.

The previous prime is 72179747. The next prime is 72179759. The reversal of 72179752 is 25797127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50779876 + 21399876 = 7126^2 + 4626^2 .

It is not an unprimeable number, because it can be changed into a prime (72179759) 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, 24693 + ... + 27460.

Almost surely, 2^72179752 is an apocalyptic number.

It is an amenable number.

72179752 is a deficient number, since it is larger than the sum of its proper divisors (63942188).

72179752 is a wasteful number, since it uses less digits than its factorization.

72179752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52332 (or 52328 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 72179752 is about 8495.8667597838. The cubic root of 72179752 is about 416.3626798926.

The spelling of 72179752 in words is "seventy-two million, one hundred seventy-nine thousand, seven hundred fifty-two".