641683354 has 8 divisors (see below), whose sum is σ = 1036565460. Its totient is φ = 296161536.

The previous prime is 641683313. The next prime is 641683363. The reversal of 641683354 is 453386146.

It can be written as a sum of positive squares in 2 ways, for example, as 641254329 + 429025 = 25323^2 + 655^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12340039 + ... + 12340090.

Almost surely, 2^641683354 is an apocalyptic number.

641683354 is a deficient number, since it is larger than the sum of its proper divisors (394882106).

641683354 is a wasteful number, since it uses less digits than its factorization.

641683354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24680144.

The product of its digits is 207360, while the sum is 40.

The square root of 641683354 is about 25331.4696375872. The cubic root of 641683354 is about 862.5287720991.

The spelling of 641683354 in words is "six hundred forty-one million, six hundred eighty-three thousand, three hundred fifty-four".