6990732 has 72 divisors (see below), whose sum is σ = 21099120. Its totient is φ = 1995840.

The previous prime is 6990721. The next prime is 6990749. The reversal of 6990732 is 2370996.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6⁸ + 9³ + 9³ + 0 + 7⁴ + 3¹⁴ + 2¹⁹ .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4632 + ... + 5952.

Almost surely, 2^6990732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6990732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10549560).

6990732 is an abundant number, since it is smaller than the sum of its proper divisors (14108388).

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

6990732 is a wasteful number, since it uses less digits than its factorization.

6990732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 6990732 is about 2643.9992435702. Note that the first 3 decimals coincide. The cubic root of 6990732 is about 191.2086569611.

The spelling of 6990732 in words is "six million, nine hundred ninety thousand, seven hundred thirty-two".