700210021 has 16 divisors (see below), whose sum is σ = 847552000. Its totient is φ = 565085808.

The previous prime is 700210019. The next prime is 700210031. The reversal of 700210021 is 120012007.

It is not a de Polignac number, because 700210021 - 2¹ = 700210019 is a prime.

700210021 is a modest number, since divided by 210021 gives 7 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 700209983 and 700210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700210001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5530 + ... + 37828.

It is an arithmetic number, because the mean of its divisors is an integer number (52972000).

Almost surely, 2^700210021 is an apocalyptic number.

It is an amenable number.

700210021 is a deficient number, since it is larger than the sum of its proper divisors (147341979).

700210021 is a wasteful number, since it uses less digits than its factorization.

700210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32488.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 700210021 is about 26461.4818368133. The cubic root of 700210021 is about 887.9927921425.

Adding to 700210021 its reverse (120012007), we get a palindrome (820222028).

The spelling of 700210021 in words is "seven hundred million, two hundred ten thousand, twenty-one".