104639069 has 2 divisors, whose sum is σ = 104639070. Its totient is φ = 104639068.

The previous prime is 104639009. The next prime is 104639113. The reversal of 104639069 is 960936401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 17123044 = 9355^2 + 4138^2 .

It is a cyclic number.

It is not a de Polignac number, because 104639069 - 2¹² = 104634973 is a prime.

It is a super-2 number, since 2×104639069² = 21898669522373522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104639009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52319534 + 52319535.

It is an arithmetic number, because the mean of its divisors is an integer number (52319535).

Almost surely, 2^104639069 is an apocalyptic number.

It is an amenable number.

104639069 is a deficient number, since it is larger than the sum of its proper divisors (1).

104639069 is an equidigital number, since it uses as much as digits as its factorization.

104639069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 104639069 is about 10229.3239757083. The cubic root of 104639069 is about 471.2282180993.

The spelling of 104639069 in words is "one hundred four million, six hundred thirty-nine thousand, sixty-nine".