641674 has 8 divisors (see below), whose sum is σ = 1050048. Its totient is φ = 291660.

The previous prime is 641639. The next prime is 641681. The reversal of 641674 is 476146.

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

It is an Ulam number.

It is a plaindrome in base 14.

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, 14562 + ... + 14605.

It is an arithmetic number, because the mean of its divisors is an integer number (131256).

2⁶⁴¹⁶⁷⁴ is an apocalyptic number.

641674 is a deficient number, since it is larger than the sum of its proper divisors (408374).

641674 is a wasteful number, since it uses less digits than its factorization.

641674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29180.

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

The square root of 641674 is about 801.0455667439. The cubic root of 641674 is about 86.2524580970.

The spelling of 641674 in words is "six hundred forty-one thousand, six hundred seventy-four".