69004487 has 2 divisors, whose sum is σ = 69004488. Its totient is φ = 69004486.

The previous prime is 69004477. The next prime is 69004489. The reversal of 69004487 is 78440096.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69004487 - 2⁸ = 69004231 is a prime.

It is a super-2 number, since 2×69004487² = 9523238452266338, which contains 22 as substring.

Together with 69004489, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69004487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69004489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34502243 + 34502244.

It is an arithmetic number, because the mean of its divisors is an integer number (34502244).

Almost surely, 2^69004487 is an apocalyptic number.

69004487 is a deficient number, since it is larger than the sum of its proper divisors (1).

69004487 is an equidigital number, since it uses as much as digits as its factorization.

69004487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 69004487 is about 8306.8939441888. The cubic root of 69004487 is about 410.1654834666.

The spelling of 69004487 in words is "sixty-nine million, four thousand, four hundred eighty-seven".