34658821 has 4 divisors (see below), whose sum is σ = 34782444. Its totient is φ = 34535200.

The previous prime is 34658777. The next prime is 34658851. The reversal of 34658821 is 12885643.

It is a happy number.

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 29757025 + 4901796 = 5455^2 + 2214^2 .

It is a cyclic number.

It is not a de Polignac number, because 34658821 - 2¹⁹ = 34134533 is a prime.

It is a super-2 number, since 2×34658821² = 2402467746220082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34658851) 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, 61390 + ... + 61951.

It is an arithmetic number, because the mean of its divisors is an integer number (8695611).

Almost surely, 2^34658821 is an apocalyptic number.

It is an amenable number.

34658821 is a deficient number, since it is larger than the sum of its proper divisors (123623).

34658821 is a wasteful number, since it uses less digits than its factorization.

34658821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123622.

The product of its digits is 46080, while the sum is 37.

The square root of 34658821 is about 5887.1742797373. The cubic root of 34658821 is about 326.0402832025.

The spelling of 34658821 in words is "thirty-four million, six hundred fifty-eight thousand, eight hundred twenty-one".