6401583 has 6 divisors (see below), whose sum is σ = 9246744. Its totient is φ = 4267716.

The previous prime is 6401579. The next prime is 6401587. The reversal of 6401583 is 3851046.

6401583 is a `hidden beast` number, since 640 + 15 + 8 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (6401579) and next prime (6401587).

It is not a de Polignac number, because 6401583 - 2² = 6401579 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401587) 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 5 ways as a sum of consecutive naturals, for example, 355635 + ... + 355652.

It is an arithmetic number, because the mean of its divisors is an integer number (1541124).

Almost surely, 2^6401583 is an apocalyptic number.

6401583 is a deficient number, since it is larger than the sum of its proper divisors (2845161).

6401583 is a wasteful number, since it uses less digits than its factorization.

6401583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711293 (or 711290 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6401583 is about 2530.1349766366. The cubic root of 6401583 is about 185.6788596558.

The spelling of 6401583 in words is "six million, four hundred one thousand, five hundred eighty-three".