69984471 has 8 divisors (see below), whose sum is σ = 93351280. Its totient is φ = 46636992.

The previous prime is 69984463. The next prime is 69984479. The reversal of 69984471 is 17448996.

It is an interprime number because it is at equal distance from previous prime (69984463) and next prime (69984479).

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

It is not a de Polignac number, because 69984471 - 2³ = 69984463 is a prime.

It is a super-3 number, since 3×69984471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69984471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69984479) 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, 11721 + ... + 16653.

It is an arithmetic number, because the mean of its divisors is an integer number (11668910).

Almost surely, 2^69984471 is an apocalyptic number.

69984471 is a deficient number, since it is larger than the sum of its proper divisors (23366809).

69984471 is a wasteful number, since it uses less digits than its factorization.

69984471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665.

The product of its digits is 435456, while the sum is 48.

The square root of 69984471 is about 8365.6721786118. The cubic root of 69984471 is about 412.0980518034.

The spelling of 69984471 in words is "sixty-nine million, nine hundred eighty-four thousand, four hundred seventy-one".