6397236 has 36 divisors (see below), whose sum is σ = 17123652. Its totient is φ = 2006784.

The previous prime is 6397229. The next prime is 6397273. The reversal of 6397236 is 6327936.

It can be written as a sum of positive squares in 2 ways, for example, as 5788836 + 608400 = 2406^2 + 780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6 + 3⁹ + 9⁷ + 7 + 2⁵ + 3¹³ + 6³ .

It is a self number, because there is not a number n which added to its sum of digits gives 6397236.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4615 + ... + 5838.

It is an arithmetic number, because the mean of its divisors is an integer number (475657).

Almost surely, 2^6397236 is an apocalyptic number.

It is an amenable number.

6397236 is an abundant number, since it is smaller than the sum of its proper divisors (10726416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397236 is a wasteful number, since it uses less digits than its factorization.

6397236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10480 (or 10475 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 6397236 is about 2529.2757856746. The cubic root of 6397236 is about 185.6368216802.

It can be divided in two parts, 639 and 7236, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 6397236 in words is "six million, three hundred ninety-seven thousand, two hundred thirty-six".