72953269 has 2 divisors, whose sum is σ = 72953270. Its totient is φ = 72953268.

The previous prime is 72953161. The next prime is 72953297. The reversal of 72953269 is 96235927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72880369 + 72900 = 8537^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 72953269 - 2¹⁵ = 72920501 is a prime.

It is a super-2 number, since 2×72953269² = 10644358915572722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72903269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36476634 + 36476635.

It is an arithmetic number, because the mean of its divisors is an integer number (36476635).

Almost surely, 2^72953269 is an apocalyptic number.

It is an amenable number.

72953269 is a deficient number, since it is larger than the sum of its proper divisors (1).

72953269 is an equidigital number, since it uses as much as digits as its factorization.

72953269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 43.

The square root of 72953269 is about 8541.2685825936. The cubic root of 72953269 is about 417.8447203735.

The spelling of 72953269 in words is "seventy-two million, nine hundred fifty-three thousand, two hundred sixty-nine".