6898869784 has 8 divisors (see below), whose sum is σ = 12935380860. Its totient is φ = 3449434888.

The previous prime is 6898869781. The next prime is 6898869811. The reversal of 6898869784 is 4879688986.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6898869781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431179354 + ... + 431179369.

Almost surely, 2^6898869784 is an apocalyptic number.

It is an amenable number.

6898869784 is a deficient number, since it is larger than the sum of its proper divisors (6036511076).

6898869784 is a wasteful number, since it uses less digits than its factorization.

6898869784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862358729 (or 862358725 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 73.

The square root of 6898869784 is about 83059.4352497054. The cubic root of 6898869784 is about 1903.6743103621.

The spelling of 6898869784 in words is "six billion, eight hundred ninety-eight million, eight hundred sixty-nine thousand, seven hundred eighty-four".