69869087 has 2 divisors, whose sum is σ = 69869088. Its totient is φ = 69869086.

The previous prime is 69869069. The next prime is 69869089. The reversal of 69869087 is 78096896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69869087 - 2²² = 65674783 is a prime.

Together with 69869089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69869089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34934543 + 34934544.

It is an arithmetic number, because the mean of its divisors is an integer number (34934544).

Almost surely, 2^69869087 is an apocalyptic number.

69869087 is a deficient number, since it is larger than the sum of its proper divisors (1).

69869087 is an equidigital number, since it uses as much as digits as its factorization.

69869087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 69869087 is about 8358.7730558976. The cubic root of 69869087 is about 411.8714506891.

The spelling of 69869087 in words is "sixty-nine million, eight hundred sixty-nine thousand, eighty-seven".