630897 has 4 divisors (see below), whose sum is σ = 841200. Its totient is φ = 420596.

The previous prime is 630893. The next prime is 630899. The reversal of 630897 is 798036.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 630897 - 2² = 630893 is a prime.

It is a D-number.

630897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (630893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105147 + ... + 105152.

It is an arithmetic number, because the mean of its divisors is an integer number (210300).

2⁶³⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

630897 is a deficient number, since it is larger than the sum of its proper divisors (210303).

630897 is a wasteful number, since it uses less digits than its factorization.

630897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210302.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 630897 is about 794.2902492162. The cubic root of 630897 is about 85.7668554501.

It can be divided in two parts, 6 and 30897, that added together give a palindrome (30903).

The spelling of 630897 in words is "six hundred thirty thousand, eight hundred ninety-seven".