72708430 has 8 divisors (see below), whose sum is σ = 130875192. Its totient is φ = 29083368.

The previous prime is 72708413. The next prime is 72708437. The reversal of 72708430 is 3480727.

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

It is a junction number, because it is equal to n+sod(n) for n = 72708392 and 72708401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72708437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3635412 + ... + 3635431.

It is an arithmetic number, because the mean of its divisors is an integer number (16359399).

Almost surely, 2^72708430 is an apocalyptic number.

72708430 is a deficient number, since it is larger than the sum of its proper divisors (58166762).

72708430 is a wasteful number, since it uses less digits than its factorization.

72708430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7270850.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 72708430 is about 8526.9238298463. The cubic root of 72708430 is about 417.3767525576.

The spelling of 72708430 in words is "seventy-two million, seven hundred eight thousand, four hundred thirty".