72968578 has 8 divisors (see below), whose sum is σ = 110187900. Its totient is φ = 36239280.

The previous prime is 72968563. The next prime is 72968579. The reversal of 72968578 is 87586927.

It can be written as a sum of positive squares in 2 ways, for example, as 72880369 + 88209 = 8537^2 + 297^2 .

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

It is not an unprimeable number, because it can be changed into a prime (72968579) 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 3 ways as a sum of consecutive naturals, for example, 122133 + ... + 122728.

Almost surely, 2^72968578 is an apocalyptic number.

72968578 is a deficient number, since it is larger than the sum of its proper divisors (37219322).

72968578 is a wasteful number, since it uses less digits than its factorization.

72968578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245012.

The product of its digits is 1693440, while the sum is 52.

The square root of 72968578 is about 8542.1647139352. The cubic root of 72968578 is about 417.8739461025.

The spelling of 72968578 in words is "seventy-two million, nine hundred sixty-eight thousand, five hundred seventy-eight".