6463925 has 12 divisors (see below), whose sum is σ = 8632260. Its totient is φ = 4773120.

The previous prime is 6463909. The next prime is 6463949. The reversal of 6463925 is 5293646.

It can be written as a sum of positive squares in 6 ways, for example, as 27556 + 6436369 = 166^2 + 2537^2 .

It is not a de Polignac number, because 6463925 - 2⁴ = 6463909 is a prime.

It is a d-powerful number, because it can be written as 6² + 4³ + 6³ + 3¹³ + 9⁷ + 2¹³ + 5⁷ .

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, 9620 + ... + 10269.

It is an arithmetic number, because the mean of its divisors is an integer number (719355).

Almost surely, 2^6463925 is an apocalyptic number.

6463925 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6463925 is a deficient number, since it is larger than the sum of its proper divisors (2168335).

6463925 is a wasteful number, since it uses less digits than its factorization.

6463925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19912 (or 19907 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 6463925 is about 2542.4250234766. The cubic root of 6463925 is about 186.2796598562.

The spelling of 6463925 in words is "six million, four hundred sixty-three thousand, nine hundred twenty-five".