630697 has 4 divisors (see below), whose sum is σ = 633556. Its totient is φ = 627840.

The previous prime is 630689. The next prime is 630701. The reversal of 630697 is 796036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 561001 + 69696 = 749^2 + 264^2 .

It is a cyclic number.

It is not a de Polignac number, because 630697 - 2³ = 630689 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (630607) 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, 1068 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (158389).

2⁶³⁰⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

630697 is a deficient number, since it is larger than the sum of its proper divisors (2859).

630697 is a wasteful number, since it uses less digits than its factorization.

630697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 630697 is about 794.1643406752. The cubic root of 630697 is about 85.7577915384.

It can be divided in two parts, 6 and 30697, that added together give a palindrome (30703).

The spelling of 630697 in words is "six hundred thirty thousand, six hundred ninety-seven".