6390973 has 8 divisors (see below), whose sum is σ = 6909920. Its totient is φ = 5890320.

The previous prime is 6390971. The next prime is 6390983. The reversal of 6390973 is 3790936.

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 6390973 - 2¹ = 6390971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a d-powerful number, because it can be written as 6³ + 3¹³ + 9⁴ + 0 + 9⁴ + 7³ + 3¹⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3843 + ... + 5248.

It is an arithmetic number, because the mean of its divisors is an integer number (863740).

Almost surely, 2^6390973 is an apocalyptic number.

It is an amenable number.

6390973 is a deficient number, since it is larger than the sum of its proper divisors (518947).

6390973 is a wasteful number, since it uses less digits than its factorization.

6390973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9147.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 6390973 is about 2528.0373810527. The cubic root of 6390973 is about 185.5762213920.

Subtracting from 6390973 its sum of digits (37), we obtain a palindrome (6390936).

The spelling of 6390973 in words is "six million, three hundred ninety thousand, nine hundred seventy-three".