72282869 has 2 divisors, whose sum is σ = 72282870. Its totient is φ = 72282868.

The previous prime is 72282857. The next prime is 72282901. The reversal of 72282869 is 96828227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46648900 + 25633969 = 6830^2 + 5063^2 .

It is a cyclic number.

It is not a de Polignac number, because 72282869 - 2⁴ = 72282853 is a prime.

It is a super-2 number, since 2×72282869² = 10449626301742322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72282809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36141434 + 36141435.

It is an arithmetic number, because the mean of its divisors is an integer number (36141435).

Almost surely, 2^72282869 is an apocalyptic number.

It is an amenable number.

72282869 is a deficient number, since it is larger than the sum of its proper divisors (1).

72282869 is an equidigital number, since it uses as much as digits as its factorization.

72282869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 72282869 is about 8501.9332507377. The cubic root of 72282869 is about 416.5608593916.

The spelling of 72282869 in words is "seventy-two million, two hundred eighty-two thousand, eight hundred sixty-nine".