34579821 has 8 divisors (see below), whose sum is σ = 46582144. Its totient is φ = 22815360.

The previous prime is 34579807. The next prime is 34579823. The reversal of 34579821 is 12897543.

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

It is not a de Polignac number, because 34579821 - 2⁵ = 34579789 is a prime.

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 34579821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34579823) 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, 59125 + ... + 59706.

It is an arithmetic number, because the mean of its divisors is an integer number (5822768).

Almost surely, 2^34579821 is an apocalyptic number.

It is an amenable number.

34579821 is a deficient number, since it is larger than the sum of its proper divisors (12002323).

34579821 is a wasteful number, since it uses less digits than its factorization.

34579821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118931.

The product of its digits is 60480, while the sum is 39.

The square root of 34579821 is about 5880.4609513201. The cubic root of 34579821 is about 325.7923734696.

The spelling of 34579821 in words is "thirty-four million, five hundred seventy-nine thousand, eight hundred twenty-one".