8517992949 has 12 divisors (see below), whose sum is σ = 12305101536. Its totient is φ = 5678046312.

The previous prime is 8517992939. The next prime is 8517992963. The reversal of 8517992949 is 9492997158.

8517992949 is a `hidden beast` number, since 8 + 517 + 99 + 29 + 4 + 9 = 666.

It is not a de Polignac number, because 8517992949 - 2¹⁵ = 8517960181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8517992939) 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, 46042 + ... + 138404.

It is an arithmetic number, because the mean of its divisors is an integer number (1025425128).

Almost surely, 2^8517992949 is an apocalyptic number.

It is an amenable number.

8517992949 is a deficient number, since it is larger than the sum of its proper divisors (3787108587).

8517992949 is a wasteful number, since it uses less digits than its factorization.

8517992949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102616 (or 102613 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 63.

The square root of 8517992949 is about 92292.9734541043. The cubic root of 8517992949 is about 2042.2665559103.

The spelling of 8517992949 in words is "eight billion, five hundred seventeen million, nine hundred ninety-two thousand, nine hundred forty-nine".