6988530 has 64 divisors (see below), whose sum is σ = 18102528. Its totient is φ = 1720320.

The previous prime is 6988511. The next prime is 6988537. The reversal of 6988530 is 358896.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6988537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36114 + ... + 36306.

It is an arithmetic number, because the mean of its divisors is an integer number (282852).

Almost surely, 2^6988530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6988530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9051264).

6988530 is an abundant number, since it is smaller than the sum of its proper divisors (11113998).

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

6988530 is a wasteful number, since it uses less digits than its factorization.

6988530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 6988530 is about 2643.5827961310. The cubic root of 6988530 is about 191.1885786785.

The spelling of 6988530 in words is "six million, nine hundred eighty-eight thousand, five hundred thirty".