200434623 has 16 divisors (see below), whose sum is σ = 280550400. Its totient is φ = 127117440.

The previous prime is 200434603. The next prime is 200434643. The reversal of 200434623 is 326434002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (200434603) and next prime (200434643).

It is not a de Polignac number, because 200434623 - 2⁹ = 200434111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200434593 and 200434602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200434603) 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 15 ways as a sum of consecutive naturals, for example, 12778 + ... + 23751.

It is an arithmetic number, because the mean of its divisors is an integer number (17534400).

Almost surely, 2^200434623 is an apocalyptic number.

200434623 is a deficient number, since it is larger than the sum of its proper divisors (80115777).

200434623 is a wasteful number, since it uses less digits than its factorization.

200434623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36622.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 200434623 is about 14157.4935281638. The cubic root of 200434623 is about 585.2268562782.

Adding to 200434623 its reverse (326434002), we get a palindrome (526868625).

The spelling of 200434623 in words is "two hundred million, four hundred thirty-four thousand, six hundred twenty-three".