641929353 has 16 divisors (see below), whose sum is σ = 925161216. Its totient is φ = 393569280.

The previous prime is 641929339. The next prime is 641929357. The reversal of 641929353 is 353929146.

It is a happy number.

It is not a de Polignac number, because 641929353 - 2⁶ = 641929289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641929357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19800 + ... + 40937.

It is an arithmetic number, because the mean of its divisors is an integer number (57822576).

Almost surely, 2^641929353 is an apocalyptic number.

It is an amenable number.

641929353 is a deficient number, since it is larger than the sum of its proper divisors (283231863).

641929353 is a wasteful number, since it uses less digits than its factorization.

641929353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61024.

The product of its digits is 174960, while the sum is 42.

The square root of 641929353 is about 25336.3247729421. The cubic root of 641929353 is about 862.6389791587.

The spelling of 641929353 in words is "six hundred forty-one million, nine hundred twenty-nine thousand, three hundred fifty-three".