69448669 has 2 divisors, whose sum is σ = 69448670. Its totient is φ = 69448668.

The previous prime is 69448583. The next prime is 69448693. The reversal of 69448669 is 96684496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59444100 + 10004569 = 7710^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 69448669 - 2¹⁵ = 69415901 is a prime.

It is a super-2 number, since 2×69448669² = 9646235251743122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69448699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34724334 + 34724335.

It is an arithmetic number, because the mean of its divisors is an integer number (34724335).

Almost surely, 2^69448669 is an apocalyptic number.

It is an amenable number.

69448669 is a deficient number, since it is larger than the sum of its proper divisors (1).

69448669 is an equidigital number, since it uses as much as digits as its factorization.

69448669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The square root of 69448669 is about 8333.5868028119. The cubic root of 69448669 is about 411.0436804727.

The spelling of 69448669 in words is "sixty-nine million, four hundred forty-eight thousand, six hundred sixty-nine".