34279621 has 4 divisors (see below), whose sum is σ = 34841644. Its totient is φ = 33717600.

The previous prime is 34279607. The next prime is 34279627. The reversal of 34279621 is 12697243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1664100 + 32615521 = 1290^2 + 5711^2 .

It is a cyclic number.

It is not a de Polignac number, because 34279621 - 2⁹ = 34279109 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 (34279627) 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, 280920 + ... + 281041.

It is an arithmetic number, because the mean of its divisors is an integer number (8710411).

Almost surely, 2^34279621 is an apocalyptic number.

It is an amenable number.

34279621 is a deficient number, since it is larger than the sum of its proper divisors (562023).

34279621 is an equidigital number, since it uses as much as digits as its factorization.

34279621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562022.

The product of its digits is 18144, while the sum is 34.

The square root of 34279621 is about 5854.8801012489. The cubic root of 34279621 is about 324.8468580274.

The spelling of 34279621 in words is "thirty-four million, two hundred seventy-nine thousand, six hundred twenty-one".