69428011 has 2 divisors, whose sum is σ = 69428012. Its totient is φ = 69428010.

The previous prime is 69427999. The next prime is 69428063. The reversal of 69428011 is 11082496.

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-69428011 is a prime.

It is a super-2 number, since 2×69428011² = 9640497422832242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69428081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34714005 + 34714006.

It is an arithmetic number, because the mean of its divisors is an integer number (34714006).

Almost surely, 2^69428011 is an apocalyptic number.

69428011 is a deficient number, since it is larger than the sum of its proper divisors (1).

69428011 is an equidigital number, since it uses as much as digits as its factorization.

69428011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 69428011 is about 8332.3472683272. The cubic root of 69428011 is about 411.0029204766.

The spelling of 69428011 in words is "sixty-nine million, four hundred twenty-eight thousand, eleven".