700640 has 48 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 268800.

The previous prime is 700639. The next prime is 700643. The reversal of 700640 is 46007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700643) 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, 4565 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁷⁰⁰⁶⁴⁰ 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 700640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861840).

700640 is an abundant number, since it is smaller than the sum of its proper divisors (1023040).

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

700640 is a wasteful number, since it uses less digits than its factorization.

700640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 700640 is about 837.0424123066. The cubic root of 700640 is about 88.8174518631.

Adding to 700640 its reverse (46007), we get a palindrome (746647).

The spelling of 700640 in words is "seven hundred thousand, six hundred forty".