998000651 has 2 divisors, whose sum is σ = 998000652. Its totient is φ = 998000650.

The previous prime is 998000611. The next prime is 998000683. The reversal of 998000651 is 156000899.

998000651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 998000651 - 2⁶ = 998000587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (998000611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499000325 + 499000326.

It is an arithmetic number, because the mean of its divisors is an integer number (499000326).

Almost surely, 2^998000651 is an apocalyptic number.

998000651 is a deficient number, since it is larger than the sum of its proper divisors (1).

998000651 is an equidigital number, since it uses as much as digits as its factorization.

998000651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 998000651 is about 31591.1483013834. The cubic root of 998000651 is about 999.3331056842. Note that the first 3 decimals are identical.

The spelling of 998000651 in words is "nine hundred ninety-eight million, six hundred fifty-one", and thus it is an aban number.