210004 has 6 divisors (see below), whose sum is σ = 367514. Its totient is φ = 105000.

The previous prime is 209987. The next prime is 210011. The reversal of 210004 is 400012.

It can be written as a sum of positive squares in only one way, i.e., 161604 + 48400 = 402^2 + 220^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26247 + ... + 26254.

2²¹⁰⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

210004 is a deficient number, since it is larger than the sum of its proper divisors (157510).

210004 is a wasteful number, since it uses less digits than its factorization.

210004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52505 (or 52503 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 210004 is about 458.2619338326. The cubic root of 210004 is about 59.4395969171.

Adding to 210004 its reverse (400012), we get a palindrome (610016).

The spelling of 210004 in words is "two hundred ten thousand, four", and thus it is an iban number.