646005701 has 8 divisors (see below), whose sum is σ = 708809184. Its totient is φ = 583881520.

The previous prime is 646005667. The next prime is 646005709. The reversal of 646005701 is 107500646.

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

It is a cyclic number.

It is not a de Polignac number, because 646005701 - 2⁶ = 646005637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646005709) 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, 167831 + ... + 171636.

It is an arithmetic number, because the mean of its divisors is an integer number (88601148).

Almost surely, 2^646005701 is an apocalyptic number.

It is an amenable number.

646005701 is a deficient number, since it is larger than the sum of its proper divisors (62803483).

646005701 is a wasteful number, since it uses less digits than its factorization.

646005701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339651.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 646005701 is about 25416.6422054527. The cubic root of 646005701 is about 864.4610901385.

The spelling of 646005701 in words is "six hundred forty-six million, five thousand, seven hundred one".