72882317 has 4 divisors (see below), whose sum is σ = 73252476. Its totient is φ = 72512160.

The previous prime is 72882259. The next prime is 72882361. The reversal of 72882317 is 71328827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71328827 = 5573 ⋅12799.

It can be written as a sum of positive squares in 2 ways, for example, as 63266116 + 9616201 = 7954^2 + 3101^2 .

It is a cyclic number.

It is not a de Polignac number, because 72882317 - 2⁶ = 72882253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72882517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184784 + ... + 185177.

It is an arithmetic number, because the mean of its divisors is an integer number (18313119).

Almost surely, 2^72882317 is an apocalyptic number.

It is an amenable number.

72882317 is a deficient number, since it is larger than the sum of its proper divisors (370159).

72882317 is a wasteful number, since it uses less digits than its factorization.

72882317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370158.

The product of its digits is 37632, while the sum is 38.

The square root of 72882317 is about 8537.1140908389. The cubic root of 72882317 is about 417.7092156619.

The spelling of 72882317 in words is "seventy-two million, eight hundred eighty-two thousand, three hundred seventeen".