641362005 has 24 divisors (see below), whose sum is σ = 1170205920. Its totient is φ = 324056160.

The previous prime is 641362003. The next prime is 641362021. The reversal of 641362005 is 500263146.

It is not a de Polignac number, because 641362005 - 2¹ = 641362003 is a prime.

It is a super-2 number, since 2×641362005² = 822690442915240050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641362005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641362003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374211 + ... + 375920.

It is an arithmetic number, because the mean of its divisors is an integer number (48758580).

Almost surely, 2^641362005 is an apocalyptic number.

It is an amenable number.

641362005 is a deficient number, since it is larger than the sum of its proper divisors (528843915).

641362005 is a wasteful number, since it uses less digits than its factorization.

641362005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750161 (or 750158 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 641362005 is about 25325.1259621744. The cubic root of 641362005 is about 862.3847659533.

The spelling of 641362005 in words is "six hundred forty-one million, three hundred sixty-two thousand, five".