6428045 has 8 divisors (see below), whose sum is σ = 8307096. Its totient is φ = 4746816.

The previous prime is 6428041. The next prime is 6428083. The reversal of 6428045 is 5408246.

6428045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6889 + 6421156 = 83^2 + 2534^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6428045 - 2² = 6428041 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁴ + 4⁶ + 2¹⁷ + 8⁷ + 0 + 4¹¹ + 5³ .

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6427999 and 6428017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6428041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49382 + ... + 49511.

It is an arithmetic number, because the mean of its divisors is an integer number (1038387).

Almost surely, 2^6428045 is an apocalyptic number.

6428045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6428045 is a deficient number, since it is larger than the sum of its proper divisors (1879051).

6428045 is a wasteful number, since it uses less digits than its factorization.

6428045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98911.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6428045 is about 2535.3589489459. The cubic root of 6428045 is about 185.9343526761.

The spelling of 6428045 in words is "six million, four hundred twenty-eight thousand, forty-five".