72282717 has 12 divisors (see below), whose sum is σ = 112439964. Its totient is φ = 44481600.

The previous prime is 72282701. The next prime is 72282733. The reversal of 72282717 is 71728227.

It is an interprime number because it is at equal distance from previous prime (72282701) and next prime (72282733).

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 33419961 = 6234^2 + 5781^2 .

It is not a de Polignac number, because 72282717 - 2⁴ = 72282701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72282737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308784 + ... + 309017.

It is an arithmetic number, because the mean of its divisors is an integer number (9369997).

Almost surely, 2^72282717 is an apocalyptic number.

It is an amenable number.

72282717 is a deficient number, since it is larger than the sum of its proper divisors (40157247).

72282717 is a wasteful number, since it uses less digits than its factorization.

72282717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617820 (or 617817 counting only the distinct ones).

The product of its digits is 21952, while the sum is 36.

The square root of 72282717 is about 8501.9243115897. The cubic root of 72282717 is about 416.5605674031.

The spelling of 72282717 in words is "seventy-two million, two hundred eighty-two thousand, seven hundred seventeen".