69966497 has 2 divisors, whose sum is σ = 69966498. Its totient is φ = 69966496.

The previous prime is 69966439. The next prime is 69966499. The reversal of 69966497 is 79466996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 13476241 = 7516^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 69966497 - 2⁶ = 69966433 is a prime.

Together with 69966499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69966499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34983248 + 34983249.

It is an arithmetic number, because the mean of its divisors is an integer number (34983249).

Almost surely, 2^69966497 is an apocalyptic number.

It is an amenable number.

69966497 is a deficient number, since it is larger than the sum of its proper divisors (1).

69966497 is an equidigital number, since it uses as much as digits as its factorization.

69966497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 56.

The square root of 69966497 is about 8364.5978385096. The cubic root of 69966497 is about 412.0627692877.

The spelling of 69966497 in words is "sixty-nine million, nine hundred sixty-six thousand, four hundred ninety-seven".