993053609 has 2 divisors, whose sum is σ = 993053610. Its totient is φ = 993053608.

The previous prime is 993053573. The next prime is 993053687. The reversal of 993053609 is 906350399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 802475584 + 190578025 = 28328^2 + 13805^2 .

It is an emirp because it is prime and its reverse (906350399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993053609 - 2⁸ = 993053353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993053609.

It is not a weakly prime, because it can be changed into another prime (993053909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496526804 + 496526805.

It is an arithmetic number, because the mean of its divisors is an integer number (496526805).

Almost surely, 2^993053609 is an apocalyptic number.

It is an amenable number.

993053609 is a deficient number, since it is larger than the sum of its proper divisors (1).

993053609 is an equidigital number, since it uses as much as digits as its factorization.

993053609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 993053609 is about 31512.7531167938. The cubic root of 993053609 is about 997.6791541749.

The spelling of 993053609 in words is "nine hundred ninety-three million, fifty-three thousand, six hundred nine".