200400973 has 2 divisors, whose sum is σ = 200400974. Its totient is φ = 200400972.

The previous prime is 200400931. The next prime is 200401013. The reversal of 200400973 is 379004002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151708489 + 48692484 = 12317^2 + 6978^2 .

It is a cyclic number.

It is not a de Polignac number, because 200400973 - 2²¹ = 198303821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200400073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100200486 + 100200487.

It is an arithmetic number, because the mean of its divisors is an integer number (100200487).

Almost surely, 2^200400973 is an apocalyptic number.

It is an amenable number.

200400973 is a deficient number, since it is larger than the sum of its proper divisors (1).

200400973 is an equidigital number, since it uses as much as digits as its factorization.

200400973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 200400973 is about 14156.3050617031. The cubic root of 200400973 is about 585.1941041426.

Adding to 200400973 its reverse (379004002), we get a palindrome (579404975).

The spelling of 200400973 in words is "two hundred million, four hundred thousand, nine hundred seventy-three".