34621 has 4 divisors (see below), whose sum is σ = 35100. Its totient is φ = 34144.

The previous prime is 34613. The next prime is 34631. The reversal of 34621 is 12643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12643 = 47 ⋅269.

It can be written as a sum of positive squares in 2 ways, for example, as 7396 + 27225 = 86^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 34621 - 2³ = 34613 is a prime.

It is a super-2 number, since 2×34621² = 2397227282, which contains 22 as substring.

It is a Duffinian number.

34621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 34595 and 34604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34631) 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, 106 + ... + 283.

It is an arithmetic number, because the mean of its divisors is an integer number (8775).

2³⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

34621 is a deficient number, since it is larger than the sum of its proper divisors (479).

34621 is an equidigital number, since it uses as much as digits as its factorization.

34621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478.

The product of its digits is 144, while the sum is 16.

The square root of 34621 is about 186.0671921646. The cubic root of 34621 is about 32.5921644259.

It can be divided in two parts, 3 and 4621, that added together give a square (4624 = 68²).

The spelling of 34621 in words is "thirty-four thousand, six hundred twenty-one".