72358469 has 2 divisors, whose sum is σ = 72358470. Its totient is φ = 72358468.

The previous prime is 72358457. The next prime is 72358499. The reversal of 72358469 is 96485327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 702244 = 8465^2 + 838^2 .

It is an emirp because it is prime and its reverse (96485327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72358469 is a prime.

It is a super-2 number, since 2×72358469² = 10471496072047922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72358439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36179234 + 36179235.

It is an arithmetic number, because the mean of its divisors is an integer number (36179235).

Almost surely, 2^72358469 is an apocalyptic number.

It is an amenable number.

72358469 is a deficient number, since it is larger than the sum of its proper divisors (1).

72358469 is an equidigital number, since it uses as much as digits as its factorization.

72358469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 72358469 is about 8506.3781364339. The cubic root of 72358469 is about 416.7060345381.

It can be divided in two parts, 72358 and 469, that added together give a palindrome (72827).

The spelling of 72358469 in words is "seventy-two million, three hundred fifty-eight thousand, four hundred sixty-nine".