6890428 has 6 divisors (see below), whose sum is σ = 12058256. Its totient is φ = 3445212.

The previous prime is 6890413. The next prime is 6890437. The reversal of 6890428 is 8240986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861300 + ... + 861307.

Almost surely, 2^6890428 is an apocalyptic number.

It is an amenable number.

6890428 is a deficient number, since it is larger than the sum of its proper divisors (5167828).

6890428 is a wasteful number, since it uses less digits than its factorization.

6890428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722611 (or 1722609 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 6890428 is about 2624.9624759223. The cubic root of 6890428 is about 190.2897518069.

The spelling of 6890428 in words is "six million, eight hundred ninety thousand, four hundred twenty-eight".