72648106 has 16 divisors (see below), whose sum is σ = 115728264. Its totient is φ = 34084864.

The previous prime is 72648083. The next prime is 72648109. The reversal of 72648106 is 60184627.

It can be written as a sum of positive squares in 4 ways, for example, as 52925625 + 19722481 = 7275^2 + 4441^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (72648109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8976 + ... + 15028.

Almost surely, 2^72648106 is an apocalyptic number.

72648106 is a deficient number, since it is larger than the sum of its proper divisors (43080158).

72648106 is a wasteful number, since it uses less digits than its factorization.

72648106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72648106 is about 8523.3858295867. The cubic root of 72648106 is about 417.2612923029.

The spelling of 72648106 in words is "seventy-two million, six hundred forty-eight thousand, one hundred six".