200651623 has 4 divisors (see below), whose sum is σ = 207124288. Its totient is φ = 194178960.

The previous prime is 200651599. The next prime is 200651639. The reversal of 200651623 is 326156002.

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

It is a cyclic number.

It is not a de Polignac number, because 200651623 - 2²¹ = 198554471 is a prime.

It is a super-2 number, since 2×200651623² = 80522147625068258, 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 (200651683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236286 + ... + 3236347.

It is an arithmetic number, because the mean of its divisors is an integer number (51781072).

Almost surely, 2^200651623 is an apocalyptic number.

200651623 is a deficient number, since it is larger than the sum of its proper divisors (6472665).

200651623 is an equidigital number, since it uses as much as digits as its factorization.

200651623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472664.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 200651623 is about 14165.1552409425. The cubic root of 200651623 is about 585.4379781949.

The spelling of 200651623 in words is "two hundred million, six hundred fifty-one thousand, six hundred twenty-three".