700020 has 36 divisors (see below), whose sum is σ = 2123940. Its totient is φ = 186624.

The previous prime is 700001. The next prime is 700027. The reversal of 700020 is 20007.

It can be written as a sum of positive squares in 2 ways, for example, as 381924 + 318096 = 618^2 + 564^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 699975 and 700011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1765 + ... + 2124.

2⁷⁰⁰⁰²⁰ is an apocalyptic number.

It is an amenable number.

700020 is an abundant number, since it is smaller than the sum of its proper divisors (1423920).

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

700020 is a wasteful number, since it uses less digits than its factorization.

700020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 9.

The square root of 700020 is about 836.6719787348. The cubic root of 700020 is about 88.7912457891.

Adding to 700020 its reverse (20007), we get a palindrome (720027).

The spelling of 700020 in words is "seven hundred thousand, twenty", and thus it is an iban number.