641006708 has 6 divisors (see below), whose sum is σ = 1121761746. Its totient is φ = 320503352.

The previous prime is 641006687. The next prime is 641006713. The reversal of 641006708 is 807600146.

It can be written as a sum of positive squares in only one way, i.e., 593507044 + 47499664 = 24362^2 + 6892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80125835 + ... + 80125842.

It is an arithmetic number, because the mean of its divisors is an integer number (186960291).

Almost surely, 2^641006708 is an apocalyptic number.

It is an amenable number.

641006708 is a deficient number, since it is larger than the sum of its proper divisors (480755038).

641006708 is a wasteful number, since it uses less digits than its factorization.

641006708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160251681 (or 160251679 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 641006708 is about 25318.1102770329. The cubic root of 641006708 is about 862.2254906846.

The spelling of 641006708 in words is "six hundred forty-one million, six thousand, seven hundred eight".