34210521 has 6 divisors (see below), whose sum is σ = 49415210. Its totient is φ = 22807008.

The previous prime is 34210483. The next prime is 34210531. The reversal of 34210521 is 12501243.

It can be written as a sum of positive squares in only one way, i.e., 29648025 + 4562496 = 5445^2 + 2136^2 .

It is not a de Polignac number, because 34210521 - 2¹⁵ = 34177753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34210494 and 34210503.

It is not an unprimeable number, because it can be changed into a prime (34210531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1900576 + ... + 1900593.

Almost surely, 2^34210521 is an apocalyptic number.

It is an amenable number.

34210521 is a deficient number, since it is larger than the sum of its proper divisors (15204689).

34210521 is a wasteful number, since it uses less digits than its factorization.

34210521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801175 (or 3801172 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 34210521 is about 5848.9760642355. The cubic root of 34210521 is about 324.6284384845.

Adding to 34210521 its reverse (12501243), we get a palindrome (46711764).

The spelling of 34210521 in words is "thirty-four million, two hundred ten thousand, five hundred twenty-one".