641962 has 8 divisors (see below), whose sum is σ = 976356. Its totient is φ = 316512.

The previous prime is 641959. The next prime is 641969. The reversal of 641962 is 269146.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 361 = 801^2 + 19^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 641962.

It is not an unprimeable number, because it can be changed into a prime (641969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053 + ... + 2344.

2⁶⁴¹⁹⁶² is an apocalyptic number.

641962 is a deficient number, since it is larger than the sum of its proper divisors (334394).

641962 is a wasteful number, since it uses less digits than its factorization.

641962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472.

The product of its digits is 2592, while the sum is 28.

The square root of 641962 is about 801.2253116321. The cubic root of 641962 is about 86.2653602833.

Subtracting from 641962 its reverse (269146), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 641962 in words is "six hundred forty-one thousand, nine hundred sixty-two".