8098649 has 12 divisors (see below), whose sum is σ = 8852076. Its totient is φ = 7405632.

The previous prime is 8098637. The next prime is 8098661. The reversal of 8098649 is 9468908.

It is an interprime number because it is at equal distance from previous prime (8098637) and next prime (8098661).

It can be written as a sum of positive squares in 6 ways, for example, as 846400 + 7252249 = 920^2 + 2693^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8098649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8098619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29099 + ... + 29375.

It is an arithmetic number, because the mean of its divisors is an integer number (737673).

Almost surely, 2^8098649 is an apocalyptic number.

It is an amenable number.

8098649 is a deficient number, since it is larger than the sum of its proper divisors (753427).

8098649 is a wasteful number, since it uses less digits than its factorization.

8098649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 8098649 is about 2845.8125377473. The cubic root of 8098649 is about 200.8187189234.

The spelling of 8098649 in words is "eight million, ninety-eight thousand, six hundred forty-nine".