890762993 has 2 divisors, whose sum is σ = 890762994. Its totient is φ = 890762992.

The previous prime is 890762963. The next prime is 890763011. The reversal of 890762993 is 399267098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 525647329 + 365115664 = 22927^2 + 19108^2 .

It is a cyclic number.

It is not a de Polignac number, because 890762993 - 2¹⁰ = 890761969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (890762963) 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 as a sum of consecutive naturals, namely, 445381496 + 445381497.

It is an arithmetic number, because the mean of its divisors is an integer number (445381497).

Almost surely, 2^890762993 is an apocalyptic number.

It is an amenable number.

890762993 is a deficient number, since it is larger than the sum of its proper divisors (1).

890762993 is an equidigital number, since it uses as much as digits as its factorization.

890762993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 890762993 is about 29845.6528325316. The cubic root of 890762993 is about 962.1749706593.

The spelling of 890762993 in words is "eight hundred ninety million, seven hundred sixty-two thousand, nine hundred ninety-three".