701645620 has 96 divisors (see below), whose sum is σ = 1642975488. Its totient is φ = 250048512.

The previous prime is 701645603. The next prime is 701645627. The reversal of 701645620 is 26546107.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701645627) 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 in 31 ways as a sum of consecutive naturals, for example, 1084137 + ... + 1084783.

It is an arithmetic number, because the mean of its divisors is an integer number (17114328).

Almost surely, 2^701645620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 701645620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (821487744).

701645620 is an abundant number, since it is smaller than the sum of its proper divisors (941329868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

701645620 is a wasteful number, since it uses less digits than its factorization.

701645620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 701645620 is about 26488.5941491805. The cubic root of 701645620 is about 888.5992441595.

The spelling of 701645620 in words is "seven hundred one million, six hundred forty-five thousand, six hundred twenty".