6989428 has 12 divisors (see below), whose sum is σ = 12462660. Its totient is φ = 3428672.

The previous prime is 6989419. The next prime is 6989429. The reversal of 6989428 is 8249896.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 3139984 = 1962^2 + 1772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16273 + ... + 16696.

It is an arithmetic number, because the mean of its divisors is an integer number (1038555).

Almost surely, 2^6989428 is an apocalyptic number.

It is an amenable number.

6989428 is a deficient number, since it is larger than the sum of its proper divisors (5473232).

6989428 is a wasteful number, since it uses less digits than its factorization.

6989428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33026 (or 33024 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 6989428 is about 2643.7526359325. The cubic root of 6989428 is about 191.1967673339.

The spelling of 6989428 in words is "six million, nine hundred eighty-nine thousand, four hundred twenty-eight".