6631065 has 40 divisors (see below), whose sum is σ = 13590720. Its totient is φ = 3030048.

The previous prime is 6631063. The next prime is 6631067. The reversal of 6631065 is 5601366.

It is an interprime number because it is at equal distance from previous prime (6631063) and next prime (6631067).

It is not a de Polignac number, because 6631065 - 2¹ = 6631063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

6631065 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6631063) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1666 + ... + 4004.

It is an arithmetic number, because the mean of its divisors is an integer number (339768).

Almost surely, 2^6631065 is an apocalyptic number.

It is an amenable number.

6631065 is an abundant number, since it is smaller than the sum of its proper divisors (6959655).

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

6631065 is a wasteful number, since it uses less digits than its factorization.

6631065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363 (or 2354 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 6631065 is about 2575.0854354759. The cubic root of 6631065 is about 187.8715831188.

It can be divided in two parts, 663 and 1065, that added together give a cube (1728 = 12³).

The spelling of 6631065 in words is "six million, six hundred thirty-one thousand, sixty-five".