998934749 has 2 divisors, whose sum is σ = 998934750. Its totient is φ = 998934748.

The previous prime is 998934733. The next prime is 998934817. The reversal of 998934749 is 947439899.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 955242649 + 43692100 = 30907^2 + 6610^2 .

It is a cyclic number.

It is not a de Polignac number, because 998934749 - 2⁴ = 998934733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 998934691 and 998934700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998934149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499467374 + 499467375.

It is an arithmetic number, because the mean of its divisors is an integer number (499467375).

Almost surely, 2^998934749 is an apocalyptic number.

It is an amenable number.

998934749 is a deficient number, since it is larger than the sum of its proper divisors (1).

998934749 is an equidigital number, since it uses as much as digits as its factorization.

998934749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 62.

The square root of 998934749 is about 31605.9290165627. The cubic root of 998934749 is about 999.6447901743.

The spelling of 998934749 in words is "nine hundred ninety-eight million, nine hundred thirty-four thousand, seven hundred forty-nine".