69516427 has 2 divisors, whose sum is σ = 69516428. Its totient is φ = 69516426.

The previous prime is 69516413. The next prime is 69516439. The reversal of 69516427 is 72461596.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69516427 - 2⁷ = 69516299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69516427.

It is not a weakly prime, because it can be changed into another prime (69516407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34758213 + 34758214.

It is an arithmetic number, because the mean of its divisors is an integer number (34758214).

Almost surely, 2^69516427 is an apocalyptic number.

69516427 is a deficient number, since it is larger than the sum of its proper divisors (1).

69516427 is an equidigital number, since it uses as much as digits as its factorization.

69516427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 69516427 is about 8337.6511680449. The cubic root of 69516427 is about 411.1773160781.

The spelling of 69516427 in words is "sixty-nine million, five hundred sixteen thousand, four hundred twenty-seven".