72648075 has 12 divisors (see below), whose sum is σ = 120111608. Its totient is φ = 38745600.

The previous prime is 72648073. The next prime is 72648083. The reversal of 72648075 is 57084627.

It is not a de Polignac number, because 72648075 - 2¹ = 72648073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72648071) 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 11 ways as a sum of consecutive naturals, for example, 484246 + ... + 484395.

Almost surely, 2^72648075 is an apocalyptic number.

72648075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72648075 is a deficient number, since it is larger than the sum of its proper divisors (47463533).

72648075 is a wasteful number, since it uses less digits than its factorization.

72648075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968654 (or 968649 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 72648075 is about 8523.3840110604. The cubic root of 72648075 is about 417.2612329525.

The spelling of 72648075 in words is "seventy-two million, six hundred forty-eight thousand, seventy-five".