72624187 has 8 divisors (see below), whose sum is σ = 77245056. Its totient is φ = 68042112.

The previous prime is 72624143. The next prime is 72624197. The reversal of 72624187 is 78142627.

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

It is a cyclic number.

It is not a de Polignac number, because 72624187 - 2¹⁹ = 72099899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72624107) 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, 5788 + ... + 13369.

It is an arithmetic number, because the mean of its divisors is an integer number (9655632).

Almost surely, 2^72624187 is an apocalyptic number.

72624187 is a deficient number, since it is larger than the sum of its proper divisors (4620869).

72624187 is a wasteful number, since it uses less digits than its factorization.

72624187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19397.

The product of its digits is 37632, while the sum is 37.

The square root of 72624187 is about 8521.9825744952. The cubic root of 72624187 is about 417.2154935940.

It can be divided in two parts, 7262 and 4187, that added together give a square (11449 = 107²).

The spelling of 72624187 in words is "seventy-two million, six hundred twenty-four thousand, one hundred eighty-seven".