72818349 has 8 divisors (see below), whose sum is σ = 100223232. Its totient is φ = 46979520.

The previous prime is 72818341. The next prime is 72818353. The reversal of 72818349 is 94381827.

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

It is not a de Polignac number, because 72818349 - 2³ = 72818341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72818349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72818341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391404 + ... + 391589.

It is an arithmetic number, because the mean of its divisors is an integer number (12527904).

Almost surely, 2^72818349 is an apocalyptic number.

It is an amenable number.

72818349 is a deficient number, since it is larger than the sum of its proper divisors (27404883).

72818349 is a wasteful number, since it uses less digits than its factorization.

72818349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783027.

The product of its digits is 96768, while the sum is 42.

The square root of 72818349 is about 8533.3668033198. The cubic root of 72818349 is about 417.5869736454.

The spelling of 72818349 in words is "seventy-two million, eight hundred eighteen thousand, three hundred forty-nine".