72953338 has 8 divisors (see below), whose sum is σ = 109837620. Its totient is φ = 36340800.

The previous prime is 72953333. The next prime is 72953417. The reversal of 72953338 is 83335927.

It can be written as a sum of positive squares in 2 ways, for example, as 63632529 + 9320809 = 7977^2 + 3053^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 72953338.

It is not an unprimeable number, because it can be changed into a prime (72953333) 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, 67263 + ... + 68338.

Almost surely, 2^72953338 is an apocalyptic number.

72953338 is a deficient number, since it is larger than the sum of its proper divisors (36884282).

72953338 is a wasteful number, since it uses less digits than its factorization.

72953338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135872.

The product of its digits is 136080, while the sum is 40.

The square root of 72953338 is about 8541.2726218053. The cubic root of 72953338 is about 417.8448521074.

The spelling of 72953338 in words is "seventy-two million, nine hundred fifty-three thousand, three hundred thirty-eight".