72648703 has 4 divisors (see below), whose sum is σ = 73733080. Its totient is φ = 71564328.

The previous prime is 72648689. The next prime is 72648707. The reversal of 72648703 is 30784627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72648703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72648707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542088 + ... + 542221.

It is an arithmetic number, because the mean of its divisors is an integer number (18433270).

Almost surely, 2^72648703 is an apocalyptic number.

72648703 is a deficient number, since it is larger than the sum of its proper divisors (1084377).

72648703 is a wasteful number, since it uses less digits than its factorization.

72648703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084376.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 72648703 is about 8523.4208508087. The cubic root of 72648703 is about 417.2624352752.

The spelling of 72648703 in words is "seventy-two million, six hundred forty-eight thousand, seven hundred three".