641674415 has 8 divisors (see below), whose sum is σ = 770149248. Its totient is φ = 513246240.

The previous prime is 641674381. The next prime is 641674417. The reversal of 641674415 is 514476146.

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

It is not a de Polignac number, because 641674415 - 2¹⁶ = 641608879 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 (641674417) 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, 37250 + ... + 51680.

It is an arithmetic number, because the mean of its divisors is an integer number (96268656).

Almost surely, 2^641674415 is an apocalyptic number.

641674415 is a deficient number, since it is larger than the sum of its proper divisors (128474833).

641674415 is a wasteful number, since it uses less digits than its factorization.

641674415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23329.

The product of its digits is 80640, while the sum is 38.

The square root of 641674415 is about 25331.2931963609. The cubic root of 641674415 is about 862.5247669147.

The spelling of 641674415 in words is "six hundred forty-one million, six hundred seventy-four thousand, four hundred fifteen".