69838221 has 8 divisors (see below), whose sum is σ = 93157344. Its totient is φ = 46538960.

The previous prime is 69838217. The next prime is 69838253. The reversal of 69838221 is 12283896.

It is a happy number.

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 69838221 - 2² = 69838217 is a prime.

It is a super-2 number, since 2×69838221² = 9754754224889682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 69838221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69838201) 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, 8326 + ... + 14456.

It is an arithmetic number, because the mean of its divisors is an integer number (11644668).

Almost surely, 2^69838221 is an apocalyptic number.

It is an amenable number.

69838221 is a deficient number, since it is larger than the sum of its proper divisors (23319123).

69838221 is a wasteful number, since it uses less digits than its factorization.

69838221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9931.

The product of its digits is 41472, while the sum is 39.

The square root of 69838221 is about 8356.9265283356. The cubic root of 69838221 is about 411.8107910696.

The spelling of 69838221 in words is "sixty-nine million, eight hundred thirty-eight thousand, two hundred twenty-one".