72652163 has 4 divisors (see below), whose sum is σ = 75157440. Its totient is φ = 70146888.

The previous prime is 72652157. The next prime is 72652171. The reversal of 72652163 is 36125627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72652163 - 2²² = 68457859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72652663) 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 3 ways as a sum of consecutive naturals, for example, 1252595 + ... + 1252652.

It is an arithmetic number, because the mean of its divisors is an integer number (18789360).

Almost surely, 2^72652163 is an apocalyptic number.

72652163 is a deficient number, since it is larger than the sum of its proper divisors (2505277).

72652163 is a wasteful number, since it uses less digits than its factorization.

72652163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505276.

The product of its digits is 15120, while the sum is 32.

The square root of 72652163 is about 8523.6238185410. The cubic root of 72652163 is about 417.2690594132.

The spelling of 72652163 in words is "seventy-two million, six hundred fifty-two thousand, one hundred sixty-three".