69172469 has 2 divisors, whose sum is σ = 69172470. Its totient is φ = 69172468.

The previous prime is 69172463. The next prime is 69172513. The reversal of 69172469 is 96427196.

It is an a-pointer prime, because the next prime (69172513) can be obtained adding 69172469 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 24108100 = 6713^2 + 4910^2 .

It is a cyclic number.

It is not a de Polignac number, because 69172469 - 2¹² = 69168373 is a prime.

It is a super-2 number, since 2×69172469² = 9569660935111922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69172463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34586234 + 34586235.

It is an arithmetic number, because the mean of its divisors is an integer number (34586235).

Almost surely, 2^69172469 is an apocalyptic number.

It is an amenable number.

69172469 is a deficient number, since it is larger than the sum of its proper divisors (1).

69172469 is an equidigital number, since it uses as much as digits as its factorization.

69172469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 69172469 is about 8316.9987976433. The cubic root of 69172469 is about 410.4980443728.

The spelling of 69172469 in words is "sixty-nine million, one hundred seventy-two thousand, four hundred sixty-nine".