72943318 has 16 divisors (see below), whose sum is σ = 131627520. Its totient is φ = 29615976.

The previous prime is 72943301. The next prime is 72943319. The reversal of 72943318 is 81334927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72943319) 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, 136846 + ... + 137377.

It is an arithmetic number, because the mean of its divisors is an integer number (8226720).

Almost surely, 2^72943318 is an apocalyptic number.

72943318 is a deficient number, since it is larger than the sum of its proper divisors (58684202).

72943318 is a wasteful number, since it uses less digits than its factorization.

72943318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274251.

The product of its digits is 36288, while the sum is 37.

The square root of 72943318 is about 8540.6860380183. The cubic root of 72943318 is about 417.8257211706.

The spelling of 72943318 in words is "seventy-two million, nine hundred forty-three thousand, three hundred eighteen".