7640283 has 16 divisors (see below), whose sum is σ = 11914496. Its totient is φ = 4263840.

The previous prime is 7640279. The next prime is 7640287. The reversal of 7640283 is 3820467.

It is an interprime number because it is at equal distance from previous prime (7640279) and next prime (7640287).

It is not a de Polignac number, because 7640283 - 2² = 7640279 is a prime.

It is a Duffinian number.

7640283 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7640283.

It is not an unprimeable number, because it can be changed into a prime (7640287) 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 in 15 ways as a sum of consecutive naturals, for example, 3328 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (744656).

Almost surely, 2^7640283 is an apocalyptic number.

7640283 is a deficient number, since it is larger than the sum of its proper divisors (4274213).

7640283 is a wasteful number, since it uses less digits than its factorization.

7640283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 7640283 is about 2764.1061846463. The cubic root of 7640283 is about 196.9562719129.

The spelling of 7640283 in words is "seven million, six hundred forty thousand, two hundred eighty-three".