72654269 has 2 divisors, whose sum is σ = 72654270. Its totient is φ = 72654268.

The previous prime is 72654259. The next prime is 72654353. The reversal of 72654269 is 96245627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67980025 + 4674244 = 8245^2 + 2162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72654269 is a prime.

It is a super-2 number, since 2×72654269² = 10557285607848722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72654259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36327134 + 36327135.

It is an arithmetic number, because the mean of its divisors is an integer number (36327135).

Almost surely, 2^72654269 is an apocalyptic number.

It is an amenable number.

72654269 is a deficient number, since it is larger than the sum of its proper divisors (1).

72654269 is an equidigital number, since it uses as much as digits as its factorization.

72654269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 72654269 is about 8523.7473566501. The cubic root of 72654269 is about 417.2730912278.

The spelling of 72654269 in words is "seventy-two million, six hundred fifty-four thousand, two hundred sixty-nine".