72880493 has 12 divisors (see below), whose sum is σ = 86849532. Its totient is φ = 60943680.

The previous prime is 72880481. The next prime is 72880501. The reversal of 72880493 is 39408827.

It can be written as a sum of positive squares in 2 ways, for example, as 28751044 + 44129449 = 5362^2 + 6643^2 .

It is not a de Polignac number, because 72880493 - 2⁴ = 72880477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72880493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72880403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16130 + ... + 20147.

It is an arithmetic number, because the mean of its divisors is an integer number (7237461).

Almost surely, 2^72880493 is an apocalyptic number.

It is an amenable number.

72880493 is a deficient number, since it is larger than the sum of its proper divisors (13969039).

72880493 is a wasteful number, since it uses less digits than its factorization.

72880493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36332 (or 36325 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 72880493 is about 8537.0072625013. The cubic root of 72880493 is about 417.7057310125.

The spelling of 72880493 in words is "seventy-two million, eight hundred eighty thousand, four hundred ninety-three".