72603189 has 8 divisors (see below), whose sum is σ = 107560320. Its totient is φ = 48402108.

The previous prime is 72603187. The next prime is 72603191. The reversal of 72603189 is 98130627.

It is an interprime number because it is at equal distance from previous prime (72603187) and next prime (72603191).

It is not a de Polignac number, because 72603189 - 2¹ = 72603187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72603187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1344477 + ... + 1344530.

It is an arithmetic number, because the mean of its divisors is an integer number (13445040).

Almost surely, 2^72603189 is an apocalyptic number.

It is an amenable number.

72603189 is a deficient number, since it is larger than the sum of its proper divisors (34957131).

72603189 is a wasteful number, since it uses less digits than its factorization.

72603189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689016 (or 2689010 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 72603189 is about 8520.7504951149. The cubic root of 72603189 is about 417.1752795562.

The spelling of 72603189 in words is "seventy-two million, six hundred three thousand, one hundred eighty-nine".