72603212 has 24 divisors (see below), whose sum is σ = 140367360. Its totient is φ = 32582160.

The previous prime is 72603197. The next prime is 72603227. The reversal of 72603212 is 21230627.

It is an interprime number because it is at equal distance from previous prime (72603197) and next prime (72603227).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6968 + ... + 13919.

It is an arithmetic number, because the mean of its divisors is an integer number (5848640).

Almost surely, 2^72603212 is an apocalyptic number.

It is an amenable number.

72603212 is a deficient number, since it is larger than the sum of its proper divisors (67764148).

72603212 is a wasteful number, since it uses less digits than its factorization.

72603212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20981 (or 20979 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 72603212 is about 8520.7518447611. The cubic root of 72603212 is about 417.1753236086.

Adding to 72603212 its reverse (21230627), we get a palindrome (93833839).

The spelling of 72603212 in words is "seventy-two million, six hundred three thousand, two hundred twelve".