72769427 has 2 divisors, whose sum is σ = 72769428. Its totient is φ = 72769426.

The previous prime is 72769387. The next prime is 72769441. The reversal of 72769427 is 72496727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72769427 - 2⁶ = 72769363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72760427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36384713 + 36384714.

It is an arithmetic number, because the mean of its divisors is an integer number (36384714).

Almost surely, 2^72769427 is an apocalyptic number.

72769427 is a deficient number, since it is larger than the sum of its proper divisors (1).

72769427 is an equidigital number, since it uses as much as digits as its factorization.

72769427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352, while the sum is 44.

The square root of 72769427 is about 8530.4998095071. The cubic root of 72769427 is about 417.4934360186.

The spelling of 72769427 in words is "seventy-two million, seven hundred sixty-nine thousand, four hundred twenty-seven".