34212621 has 4 divisors (see below), whose sum is σ = 45616832. Its totient is φ = 22808412.

The previous prime is 34212617. The next prime is 34212631. The reversal of 34212621 is 12621243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 34212621 - 2² = 34212617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34212631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5702101 + ... + 5702106.

It is an arithmetic number, because the mean of its divisors is an integer number (11404208).

Almost surely, 2^34212621 is an apocalyptic number.

It is an amenable number.

34212621 is a deficient number, since it is larger than the sum of its proper divisors (11404211).

34212621 is a wasteful number, since it uses less digits than its factorization.

34212621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11404210.

The product of its digits is 576, while the sum is 21.

The square root of 34212621 is about 5849.1555800816. The cubic root of 34212621 is about 324.6350807469.

Adding to 34212621 its reverse (12621243), we get a palindrome (46833864).

The spelling of 34212621 in words is "thirty-four million, two hundred twelve thousand, six hundred twenty-one".