6403265 has 8 divisors (see below), whose sum is σ = 8382528. Its totient is φ = 4656880.

The previous prime is 6403219. The next prime is 6403273. The reversal of 6403265 is 5623046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6403265 - 2¹⁶ = 6337729 is a prime.

It is a super-3 number, since 3×6403265³ (a number of 21 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58157 + ... + 58266.

It is an arithmetic number, because the mean of its divisors is an integer number (1047816).

Almost surely, 2^6403265 is an apocalyptic number.

It is an amenable number.

6403265 is a deficient number, since it is larger than the sum of its proper divisors (1979263).

6403265 is a wasteful number, since it uses less digits than its factorization.

6403265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116439.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6403265 is about 2530.4673481395. The cubic root of 6403265 is about 185.6951204511.

The spelling of 6403265 in words is "six million, four hundred three thousand, two hundred sixty-five".