72666627 has 8 divisors (see below), whose sum is σ = 105696960. Its totient is φ = 44040360.

The previous prime is 72666599. The next prime is 72666647.

72666627 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72666627 - 2⁶ = 72666563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72666647) 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, 1100977 + ... + 1101042.

It is an arithmetic number, because the mean of its divisors is an integer number (13212120).

Almost surely, 2^72666627 is an apocalyptic number.

72666627 is a deficient number, since it is larger than the sum of its proper divisors (33030333).

72666627 is a wasteful number, since it uses less digits than its factorization.

72666627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202033.

The product of its digits is 254016, while the sum is 42.

The square root of 72666627 is about 8524.4722417285. The cubic root of 72666627 is about 417.2967483305.

The spelling of 72666627 in words is "seventy-two million, six hundred sixty-six thousand, six hundred twenty-seven".