69690669 has 8 divisors (see below), whose sum is σ = 93009120. Its totient is φ = 46416336.

The previous prime is 69690661. The next prime is 69690671. The reversal of 69690669 is 96609696.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69690669 - 2³ = 69690661 is a prime.

It is a super-2 number, since 2×69690669² = 9713578691335122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69690661) 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 in 7 ways as a sum of consecutive naturals, for example, 7147 + ... + 13800.

It is an arithmetic number, because the mean of its divisors is an integer number (11626140).

Almost surely, 2^69690669 is an apocalyptic number.

It is an amenable number.

69690669 is a deficient number, since it is larger than the sum of its proper divisors (23318451).

69690669 is a wasteful number, since it uses less digits than its factorization.

69690669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22059.

The product of its (nonzero) digits is 944784, while the sum is 51.

The square root of 69690669 is about 8348.0937345001. The cubic root of 69690669 is about 411.5205662789.

The spelling of 69690669 in words is "sixty-nine million, six hundred ninety thousand, six hundred sixty-nine".