7646428 has 6 divisors (see below), whose sum is σ = 13381256. Its totient is φ = 3823212.

The previous prime is 7646423. The next prime is 7646437. The reversal of 7646428 is 8246467.

It is a super-2 number, since 2×7646428² = 116935722318368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7646423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955800 + ... + 955807.

Almost surely, 2^7646428 is an apocalyptic number.

It is an amenable number.

7646428 is a deficient number, since it is larger than the sum of its proper divisors (5734828).

7646428 is a wasteful number, since it uses less digits than its factorization.

7646428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911611 (or 1911609 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 7646428 is about 2765.2175321302. The cubic root of 7646428 is about 197.0090610552.

The spelling of 7646428 in words is "seven million, six hundred forty-six thousand, four hundred twenty-eight".