72293073 has 8 divisors (see below), whose sum is σ = 97345536. Its totient is φ = 47718000.

The previous prime is 72293069. The next prime is 72293077. The reversal of 72293073 is 37039227.

It is an interprime number because it is at equal distance from previous prime (72293069) and next prime (72293077).

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

It is not a de Polignac number, because 72293073 - 2² = 72293069 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72293077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118993 + ... + 119598.

It is an arithmetic number, because the mean of its divisors is an integer number (12168192).

Almost surely, 2^72293073 is an apocalyptic number.

It is an amenable number.

72293073 is a deficient number, since it is larger than the sum of its proper divisors (25052463).

72293073 is a wasteful number, since it uses less digits than its factorization.

72293073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238695.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 72293073 is about 8502.5333283675. The cubic root of 72293073 is about 416.5804601032.

It can be divided in two parts, 722930 and 73, that added together give a triangular number (723003 = T₁₂₀₂).

The spelling of 72293073 in words is "seventy-two million, two hundred ninety-three thousand, seventy-three".