6253864 has 8 divisors (see below), whose sum is σ = 11726010. Its totient is φ = 3126928.

The previous prime is 6253859. The next prime is 6253873. The reversal of 6253864 is 4683526.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5336100 + 917764 = 2310^2 + 958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6253864² = 78221629860992, which contains 22 as substring.

It is a d-powerful number, because it can be written as 6³ + 2 + 5⁹ + 3¹⁰ + 8³ + 6⁶ + 4¹¹ .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 390859 + ... + 390874.

Almost surely, 2^6253864 is an apocalyptic number.

It is an amenable number.

6253864 is a deficient number, since it is larger than the sum of its proper divisors (5472146).

6253864 is a wasteful number, since it uses less digits than its factorization.

6253864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781739 (or 781735 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 6253864 is about 2500.7726805929. The cubic root of 6253864 is about 184.2395273724.

It can be divided in two parts, 6253 and 864, that added together give a palindrome (7117).

The spelling of 6253864 in words is "six million, two hundred fifty-three thousand, eight hundred sixty-four".