6989432704 has 64 divisors (see below), whose sum is σ = 14294263680. Its totient is φ = 3403008000.

The previous prime is 6989432687. The next prime is 6989432711. The reversal of 6989432704 is 4072349896.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784177 + ... + 793039.

It is an arithmetic number, because the mean of its divisors is an integer number (223347870).

Almost surely, 2^6989432704 is an apocalyptic number.

6989432704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989432704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7147131840).

6989432704 is an abundant number, since it is smaller than the sum of its proper divisors (7304830976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6989432704 is a wasteful number, since it uses less digits than its factorization.

6989432704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 6989432704 is about 83602.8271292305. The cubic root of 6989432704 is about 1911.9681022672.

The spelling of 6989432704 in words is "six billion, nine hundred eighty-nine million, four hundred thirty-two thousand, seven hundred four".