890486497 has 2 divisors, whose sum is σ = 890486498. Its totient is φ = 890486496.

The previous prime is 890486461. The next prime is 890486539. The reversal of 890486497 is 794684098.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556912801 + 333573696 = 23599^2 + 18264^2 .

It is a cyclic number.

It is not a de Polignac number, because 890486497 - 2⁷ = 890486369 is a prime.

It is not a weakly prime, because it can be changed into another prime (890486897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445243248 + 445243249.

It is an arithmetic number, because the mean of its divisors is an integer number (445243249).

Almost surely, 2^890486497 is an apocalyptic number.

It is an amenable number.

890486497 is a deficient number, since it is larger than the sum of its proper divisors (1).

890486497 is an equidigital number, since it uses as much as digits as its factorization.

890486497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 890486497 is about 29841.0203746454. The cubic root of 890486497 is about 962.0754061796.

The spelling of 890486497 in words is "eight hundred ninety million, four hundred eighty-six thousand, four hundred ninety-seven".