8698938749 has 4 divisors (see below), whose sum is σ = 8699132064. Its totient is φ = 8698745436.

The previous prime is 8698938719. The next prime is 8698938763. The reversal of 8698938749 is 9478398968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8698938749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8698938719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10274 + ... + 132300.

It is an arithmetic number, because the mean of its divisors is an integer number (2174783016).

Almost surely, 2^8698938749 is an apocalyptic number.

It is an amenable number.

8698938749 is a deficient number, since it is larger than the sum of its proper divisors (193315).

8698938749 is a wasteful number, since it uses less digits than its factorization.

8698938749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193314.

The product of its digits is 188116992, while the sum is 71.

The square root of 8698938749 is about 93268.1014548919. The cubic root of 8698938749 is about 2056.6264850020.

The spelling of 8698938749 in words is "eight billion, six hundred ninety-eight million, nine hundred thirty-eight thousand, seven hundred forty-nine".