72648201 has 4 divisors (see below), whose sum is σ = 96864272. Its totient is φ = 48432132.

The previous prime is 72648197. The next prime is 72648217. The reversal of 72648201 is 10284627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10284627 = 3 ⋅3428209.

It is not a de Polignac number, because 72648201 - 2² = 72648197 is a prime.

It is a super-2 number, since 2×72648201² = 10555522217072802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72648241) 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, 12108031 + ... + 12108036.

It is an arithmetic number, because the mean of its divisors is an integer number (24216068).

Almost surely, 2^72648201 is an apocalyptic number.

It is an amenable number.

72648201 is a deficient number, since it is larger than the sum of its proper divisors (24216071).

72648201 is a wasteful number, since it uses less digits than its factorization.

72648201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24216070.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 72648201 is about 8523.3914024876. The cubic root of 72648201 is about 417.2614741834.

The spelling of 72648201 in words is "seventy-two million, six hundred forty-eight thousand, two hundred one".