72418703 has 8 divisors (see below), whose sum is σ = 82965120. Its totient is φ = 61922520.

The previous prime is 72418699. The next prime is 72418711. The reversal of 72418703 is 30781427.

It is a happy number.

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 72418703 - 2² = 72418699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72418703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72418733) 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, 9413 + ... + 15278.

It is an arithmetic number, because the mean of its divisors is an integer number (10370640).

Almost surely, 2^72418703 is an apocalyptic number.

72418703 is a deficient number, since it is larger than the sum of its proper divisors (10546417).

72418703 is a wasteful number, since it uses less digits than its factorization.

72418703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25117.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 72418703 is about 8509.9179196982. The cubic root of 72418703 is about 416.8216298980.

The spelling of 72418703 in words is "seventy-two million, four hundred eighteen thousand, seven hundred three".