69889607 has 2 divisors, whose sum is σ = 69889608. Its totient is φ = 69889606.

The previous prime is 69889553. The next prime is 69889609. The reversal of 69889607 is 70698896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69889607 - 2¹² = 69885511 is a prime.

It is a super-2 number, since 2×69889607² = 9769114333228898, which contains 22 as substring.

Together with 69889609, 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 (69889609) 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, 34944803 + 34944804.

It is an arithmetic number, because the mean of its divisors is an integer number (34944804).

Almost surely, 2^69889607 is an apocalyptic number.

69889607 is a deficient number, since it is larger than the sum of its proper divisors (1).

69889607 is an equidigital number, since it uses as much as digits as its factorization.

69889607 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 69889607 is about 8360.0004186603. Note that the first 3 decimals coincide. The cubic root of 69889607 is about 411.9117678750.

The spelling of 69889607 in words is "sixty-nine million, eight hundred eighty-nine thousand, six hundred seven".