6988797321 has 8 divisors (see below), whose sum is σ = 10165523424. Its totient is φ = 4235634720.

The previous prime is 6988797301. The next prime is 6988797401. The reversal of 6988797321 is 1237978896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6988797321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6988797301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105890836 + ... + 105890901.

It is an arithmetic number, because the mean of its divisors is an integer number (1270690428).

Almost surely, 2^6988797321 is an apocalyptic number.

It is an amenable number.

6988797321 is a deficient number, since it is larger than the sum of its proper divisors (3176726103).

6988797321 is a wasteful number, since it uses less digits than its factorization.

6988797321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211781751.

The product of its digits is 9144576, while the sum is 60.

The square root of 6988797321 is about 83599.0270338118. The cubic root of 6988797321 is about 1911.9101639054.

The spelling of 6988797321 in words is "six billion, nine hundred eighty-eight million, seven hundred ninety-seven thousand, three hundred twenty-one".