990600461 has 2 divisors, whose sum is σ = 990600462. Its totient is φ = 990600460.

The previous prime is 990600439. The next prime is 990600469. The reversal of 990600461 is 164006099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990297961 + 302500 = 31469^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 990600461 - 2¹⁰ = 990599437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990600469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495300230 + 495300231.

It is an arithmetic number, because the mean of its divisors is an integer number (495300231).

Almost surely, 2^990600461 is an apocalyptic number.

It is an amenable number.

990600461 is a deficient number, since it is larger than the sum of its proper divisors (1).

990600461 is an equidigital number, since it uses as much as digits as its factorization.

990600461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 990600461 is about 31473.8059503454. The cubic root of 990600461 is about 996.8569519320.

The spelling of 990600461 in words is "nine hundred ninety million, six hundred thousand, four hundred sixty-one".