210028673 has 8 divisors (see below), whose sum is σ = 214248936. Its totient is φ = 205833600.

The previous prime is 210028669. The next prime is 210028699. The reversal of 210028673 is 376820012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6310144 + 203718529 = 2512^2 + 14273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210028673 - 2² = 210028669 is a prime.

It is a super-2 number, since 2×210028673² = 88224086964281858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210028633) 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, 11015 + ... + 23267.

It is an arithmetic number, because the mean of its divisors is an integer number (26781117).

Almost surely, 2^210028673 is an apocalyptic number.

It is an amenable number.

210028673 is a deficient number, since it is larger than the sum of its proper divisors (4220263).

210028673 is a wasteful number, since it uses less digits than its factorization.

210028673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 210028673 is about 14492.3660249112. The cubic root of 210028673 is about 594.4192464379.

Adding to 210028673 its reverse (376820012), we get a palindrome (586848685).

The spelling of 210028673 in words is "two hundred ten million, twenty-eight thousand, six hundred seventy-three".