72672122 has 16 divisors (see below), whose sum is σ = 112826112. Its totient is φ = 35069760.

The previous prime is 72672079. The next prime is 72672137. The reversal of 72672122 is 22127627.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25493 + ... + 28199.

It is an arithmetic number, because the mean of its divisors is an integer number (7051632).

Almost surely, 2^72672122 is an apocalyptic number.

72672122 is a deficient number, since it is larger than the sum of its proper divisors (40153990).

72672122 is a wasteful number, since it uses less digits than its factorization.

72672122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173.

The product of its digits is 4704, while the sum is 29.

The square root of 72672122 is about 8524.7945429787. The cubic root of 72672122 is about 417.3072666291.

Adding to 72672122 its reverse (22127627), we get a palindrome (94799749).

The spelling of 72672122 in words is "seventy-two million, six hundred seventy-two thousand, one hundred twenty-two".