69728227 has 2 divisors, whose sum is σ = 69728228. Its totient is φ = 69728226.

The previous prime is 69728221. The next prime is 69728251. The reversal of 69728227 is 72282796.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69728227 is a prime.

It is not a weakly prime, because it can be changed into another prime (69728221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34864113 + 34864114.

It is an arithmetic number, because the mean of its divisors is an integer number (34864114).

Almost surely, 2^69728227 is an apocalyptic number.

69728227 is a deficient number, since it is larger than the sum of its proper divisors (1).

69728227 is an equidigital number, since it uses as much as digits as its factorization.

69728227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 69728227 is about 8350.3429270899. The cubic root of 69728227 is about 411.5944791569.

The spelling of 69728227 in words is "sixty-nine million, seven hundred twenty-eight thousand, two hundred twenty-seven".