641740714 has 4 divisors (see below), whose sum is σ = 962611074. Its totient is φ = 320870356.

The previous prime is 641740711. The next prime is 641740721. The reversal of 641740714 is 417047146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 615883489 + 25857225 = 24817^2 + 5085^2 .

It is a super-2 number, since 2×641740714² = 823662288010459592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641740714.

It is not an unprimeable number, because it can be changed into a prime (641740711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160435177 + ... + 160435180.

Almost surely, 2^641740714 is an apocalyptic number.

641740714 is a deficient number, since it is larger than the sum of its proper divisors (320870360).

641740714 is a wasteful number, since it uses less digits than its factorization.

641740714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320870359.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 641740714 is about 25332.6018008415. The cubic root of 641740714 is about 862.5544717820.

The spelling of 641740714 in words is "six hundred forty-one million, seven hundred forty thousand, seven hundred fourteen".