69966471 has 8 divisors (see below), whose sum is σ = 93621744. Its totient is φ = 46477760.

The previous prime is 69966439. The next prime is 69966497. The reversal of 69966471 is 17466996.

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 69966471 - 2⁵ = 69966439 is a prime.

It is a super-3 number, since 3×69966471³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 69966471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69966571) 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, 40656 + ... + 42341.

It is an arithmetic number, because the mean of its divisors is an integer number (11702718).

Almost surely, 2^69966471 is an apocalyptic number.

69966471 is a deficient number, since it is larger than the sum of its proper divisors (23655273).

69966471 is a wasteful number, since it uses less digits than its factorization.

69966471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83281.

The product of its digits is 489888, while the sum is 48.

The square root of 69966471 is about 8364.5962843403. The cubic root of 69966471 is about 412.0627182460.

The spelling of 69966471 in words is "sixty-nine million, nine hundred sixty-six thousand, four hundred seventy-one".