641535093 has 8 divisors (see below), whose sum is σ = 950422400. Its totient is φ = 427690044.

The previous prime is 641535091. The next prime is 641535121. The reversal of 641535093 is 390535146.

641535093 is a `hidden beast` number, since 641 + 5 + 3 + 5 + 0 + 9 + 3 = 666.

641535093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641535093 - 2¹ = 641535091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641535091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11880253 + ... + 11880306.

It is an arithmetic number, because the mean of its divisors is an integer number (118802800).

Almost surely, 2^641535093 is an apocalyptic number.

It is an amenable number.

641535093 is a deficient number, since it is larger than the sum of its proper divisors (308887307).

641535093 is a wasteful number, since it uses less digits than its factorization.

641535093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23760568 (or 23760562 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 641535093 is about 25328.5430492952. The cubic root of 641535093 is about 862.4623378640.

The spelling of 641535093 in words is "six hundred forty-one million, five hundred thirty-five thousand, ninety-three".