72343911 has 8 divisors (see below), whose sum is σ = 96608880. Its totient is φ = 48154112.

The previous prime is 72343903. The next prime is 72343939. The reversal of 72343911 is 11934327.

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

It is a cyclic number.

It is not a de Polignac number, because 72343911 - 2³ = 72343903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72343961) 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, 16506 + ... + 20423.

It is an arithmetic number, because the mean of its divisors is an integer number (12076110).

Almost surely, 2^72343911 is an apocalyptic number.

72343911 is a deficient number, since it is larger than the sum of its proper divisors (24264969).

72343911 is a wasteful number, since it uses less digits than its factorization.

72343911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37585.

The product of its digits is 4536, while the sum is 30.

The square root of 72343911 is about 8505.5223825465. The cubic root of 72343911 is about 416.6780865848.

The spelling of 72343911 in words is "seventy-two million, three hundred forty-three thousand, nine hundred eleven".