69402089 has 2 divisors, whose sum is σ = 69402090. Its totient is φ = 69402088.

The previous prime is 69402077. The next prime is 69402103. The reversal of 69402089 is 98020496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42445225 + 26956864 = 6515^2 + 5192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69402089 is a prime.

It is equal to p_4084949 and since 69402089 and 4084949 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (69402029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34701044 + 34701045.

It is an arithmetic number, because the mean of its divisors is an integer number (34701045).

Almost surely, 2^69402089 is an apocalyptic number.

It is an amenable number.

69402089 is a deficient number, since it is larger than the sum of its proper divisors (1).

69402089 is an equidigital number, since it uses as much as digits as its factorization.

69402089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 69402089 is about 8330.7916190480. The cubic root of 69402089 is about 410.9517627197.

The spelling of 69402089 in words is "sixty-nine million, four hundred two thousand, eighty-nine".