34821389 has 8 divisors (see below), whose sum is σ = 36936000. Its totient is φ = 32714176.

The previous prime is 34821359. The next prime is 34821419. The reversal of 34821389 is 98312843.

It is an interprime number because it is at equal distance from previous prime (34821359) and next prime (34821419).

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 34821389 - 2⁸ = 34821133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34821349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10112 + ... + 13110.

It is an arithmetic number, because the mean of its divisors is an integer number (4617000).

Almost surely, 2^34821389 is an apocalyptic number.

It is an amenable number.

34821389 is a deficient number, since it is larger than the sum of its proper divisors (2114611).

34821389 is a wasteful number, since it uses less digits than its factorization.

34821389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its digits is 41472, while the sum is 38.

The square root of 34821389 is about 5900.9650905593. The cubic root of 34821389 is about 326.5492547408.

The spelling of 34821389 in words is "thirty-four million, eight hundred twenty-one thousand, three hundred eighty-nine".