8398556499 has 16 divisors (see below), whose sum is σ = 11295684000. Its totient is φ = 5550383616.

The previous prime is 8398556483. The next prime is 8398556501. The reversal of 8398556499 is 9946558938.

It is not a de Polignac number, because 8398556499 - 2⁴ = 8398556483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8398556459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209067 + ... + 245979.

It is an arithmetic number, because the mean of its divisors is an integer number (705980250).

Almost surely, 2^8398556499 is an apocalyptic number.

8398556499 is a deficient number, since it is larger than the sum of its proper divisors (2897127501).

8398556499 is a wasteful number, since it uses less digits than its factorization.

8398556499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37574.

The product of its digits is 83980800, while the sum is 66.

The square root of 8398556499 is about 91643.6386172003. The cubic root of 8398556499 is about 2032.6762649624.

The spelling of 8398556499 in words is "eight billion, three hundred ninety-eight million, five hundred fifty-six thousand, four hundred ninety-nine".