984649 has 4 divisors (see below), whose sum is σ = 994500. Its totient is φ = 974800.

The previous prime is 984617. The next prime is 984667. The reversal of 984649 is 946489.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585225 + 399424 = 765^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 984649 - 2⁵ = 984617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (984689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4774 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (248625).

2⁹⁸⁴⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

984649 is a deficient number, since it is larger than the sum of its proper divisors (9851).

984649 is a wasteful number, since it uses less digits than its factorization.

984649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9850.

The product of its digits is 62208, while the sum is 40.

The square root of 984649 is about 992.2948150625. The cubic root of 984649 is about 99.4856590696.

The spelling of 984649 in words is "nine hundred eighty-four thousand, six hundred forty-nine".