6290645 has 8 divisors (see below), whose sum is σ = 7571256. Its totient is φ = 5017536.

The previous prime is 6290633. The next prime is 6290657. The reversal of 6290645 is 5460926.

It is an interprime number because it is at equal distance from previous prime (6290633) and next prime (6290657).

It can be written as a sum of positive squares in 4 ways, for example, as 2515396 + 3775249 = 1586^2 + 1943^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6290645 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (946407).

Almost surely, 2^6290645 is an apocalyptic number.

It is an amenable number.

6290645 is a deficient number, since it is larger than the sum of its proper divisors (1280611).

6290645 is a wasteful number, since it uses less digits than its factorization.

6290645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6290645 is about 2508.1158266715. The cubic root of 6290645 is about 184.6000123641.

The spelling of 6290645 in words is "six million, two hundred ninety thousand, six hundred forty-five".