72079993 has 8 divisors (see below), whose sum is σ = 75156480. Its totient is φ = 69042960.

The previous prime is 72079961. The next prime is 72080003. The reversal of 72079993 is 39997027.

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 72079993 - 2⁵ = 72079961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72079913) 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, 6103 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (9394560).

Almost surely, 2^72079993 is an apocalyptic number.

It is an amenable number.

72079993 is a deficient number, since it is larger than the sum of its proper divisors (3076487).

72079993 is a wasteful number, since it uses less digits than its factorization.

72079993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19727.

The product of its (nonzero) digits is 214326, while the sum is 46.

The square root of 72079993 is about 8489.9936984664. The cubic root of 72079993 is about 416.1707743900.

The spelling of 72079993 in words is "seventy-two million, seventy-nine thousand, nine hundred ninety-three".