641210347 has 8 divisors (see below), whose sum is σ = 675886400. Its totient is φ = 606627144.

The previous prime is 641210341. The next prime is 641210359. The reversal of 641210347 is 743012146.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641210347 is a prime.

It is a super-2 number, since 2×641210347² = 822301418199720818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641210341) 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, 8793 + ... + 36874.

It is an arithmetic number, because the mean of its divisors is an integer number (84485800).

Almost surely, 2^641210347 is an apocalyptic number.

641210347 is a deficient number, since it is larger than the sum of its proper divisors (34676053).

641210347 is a wasteful number, since it uses less digits than its factorization.

641210347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46425.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 641210347 is about 25322.1315650954. The cubic root of 641210347 is about 862.3167867373.

The spelling of 641210347 in words is "six hundred forty-one million, two hundred ten thousand, three hundred forty-seven".