6985428 has 12 divisors (see below), whose sum is σ = 16299360. Its totient is φ = 2328472.

The previous prime is 6985427. The next prime is 6985439. The reversal of 6985428 is 8245896.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6985428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985421) 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, 291048 + ... + 291071.

It is an arithmetic number, because the mean of its divisors is an integer number (1358280).

Almost surely, 2^6985428 is an apocalyptic number.

It is an amenable number.

6985428 is an abundant number, since it is smaller than the sum of its proper divisors (9313932).

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

6985428 is a wasteful number, since it uses less digits than its factorization.

6985428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582126 (or 582124 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 6985428 is about 2642.9960272388. The cubic root of 6985428 is about 191.1602868565.

The spelling of 6985428 in words is "six million, nine hundred eighty-five thousand, four hundred twenty-eight".