6917428 has 36 divisors (see below), whose sum is σ = 14579460. Its totient is φ = 2860032.

The previous prime is 6917381. The next prime is 6917431. The reversal of 6917428 is 8247196.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 3952144 = 1722^2 + 1988^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5076 + ... + 6292.

It is an arithmetic number, because the mean of its divisors is an integer number (404985).

Almost surely, 2^6917428 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 6917428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7289730).

6917428 is an abundant number, since it is smaller than the sum of its proper divisors (7662032).

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

6917428 is a wasteful number, since it uses less digits than its factorization.

6917428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1255 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 6917428 is about 2630.1003783126. The cubic root of 6917428 is about 190.5379766899.

The spelling of 6917428 in words is "six million, nine hundred seventeen thousand, four hundred twenty-eight".