200734621 has 4 divisors (see below), whose sum is σ = 205402912. Its totient is φ = 196066332.

The previous prime is 200734577. The next prime is 200734627. The reversal of 200734621 is 126437002.

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 a cyclic number.

It is not a de Polignac number, because 200734621 - 2⁷ = 200734493 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 (200734627) 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, 2334081 + ... + 2334166.

It is an arithmetic number, because the mean of its divisors is an integer number (51350728).

Almost surely, 2^200734621 is an apocalyptic number.

It is an amenable number.

200734621 is a deficient number, since it is larger than the sum of its proper divisors (4668291).

200734621 is an equidigital number, since it uses as much as digits as its factorization.

200734621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668290.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 200734621 is about 14168.0845917859. The cubic root of 200734621 is about 585.5186877061.

The spelling of 200734621 in words is "two hundred million, seven hundred thirty-four thousand, six hundred twenty-one".