6989631000 has 256 divisors, whose sum is σ = 24827212800. Its totient is φ = 1620608000.

The previous prime is 6989630993. The next prime is 6989631007. The reversal of 6989631000 is 1369896.

It is an interprime number because it is at equal distance from previous prime (6989630993) and next prime (6989631007).

It is a super-2 number, since 2×6989631000² = 97709883032322000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989631007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 754396 + ... + 763604.

It is an arithmetic number, because the mean of its divisors is an integer number (96981300).

Almost surely, 2^6989631000 is an apocalyptic number.

6989631000 is a gapful number since it is divisible by the number (60) 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 6989631000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12413606400).

6989631000 is an abundant number, since it is smaller than the sum of its proper divisors (17837581800).

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

6989631000 is a wasteful number, since it uses less digits than its factorization.

6989631000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267 (or 9253 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 6989631000 is about 83604.0130615750. The cubic root of 6989631000 is about 1911.9861834695.

The spelling of 6989631000 in words is "six billion, nine hundred eighty-nine million, six hundred thirty-one thousand".