69081079 has 2 divisors, whose sum is σ = 69081080. Its totient is φ = 69081078.

The previous prime is 69081073. The next prime is 69081127. The reversal of 69081079 is 97018096.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69081079 - 2⁷ = 69080951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69081073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34540539 + 34540540.

It is an arithmetic number, because the mean of its divisors is an integer number (34540540).

Almost surely, 2^69081079 is an apocalyptic number.

69081079 is a deficient number, since it is larger than the sum of its proper divisors (1).

69081079 is an equidigital number, since it uses as much as digits as its factorization.

69081079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 69081079 is about 8311.5028123679. The cubic root of 69081079 is about 410.3171826772.

The spelling of 69081079 in words is "sixty-nine million, eighty-one thousand, seventy-nine".