200842729 has 4 divisors (see below), whose sum is σ = 201001284. Its totient is φ = 200684176.

The previous prime is 200842679. The next prime is 200842757. The reversal of 200842729 is 927248002.

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 146967129 + 53875600 = 12123^2 + 7340^2 .

It is a cyclic number.

It is not a de Polignac number, because 200842729 - 2¹⁷ = 200711657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200842694 and 200842703.

It is not an unprimeable number, because it can be changed into a prime (200842129) 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, 77362 + ... + 79915.

It is an arithmetic number, because the mean of its divisors is an integer number (50250321).

Almost surely, 2^200842729 is an apocalyptic number.

It is an amenable number.

200842729 is a deficient number, since it is larger than the sum of its proper divisors (158555).

200842729 is a wasteful number, since it uses less digits than its factorization.

200842729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158554.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 200842729 is about 14171.8992728568. The cubic root of 200842729 is about 585.6237815091.

The spelling of 200842729 in words is "two hundred million, eight hundred forty-two thousand, seven hundred twenty-nine".