69990069 has 8 divisors (see below), whose sum is σ = 93391200. Its totient is φ = 46624496.

The previous prime is 69990049. The next prime is 69990077. The reversal of 69990069 is 96009996.

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

It is a cyclic number.

It is not a de Polignac number, because 69990069 - 2²⁰ = 68941493 is a prime.

It is a super-2 number, since 2×69990069² = 9797219517249522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69990029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (11673900).

Almost surely, 2^69990069 is an apocalyptic number.

It is an amenable number.

69990069 is a deficient number, since it is larger than the sum of its proper divisors (23401131).

69990069 is a wasteful number, since it uses less digits than its factorization.

69990069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17779.

The product of its (nonzero) digits is 236196, while the sum is 48.

The square root of 69990069 is about 8366.0067535235. The cubic root of 69990069 is about 412.1090393047.

The spelling of 69990069 in words is "sixty-nine million, nine hundred ninety thousand, sixty-nine".