630801 has 16 divisors (see below), whose sum is σ = 952320. Its totient is φ = 412560.

The previous prime is 630797. The next prime is 630803. The reversal of 630801 is 108036.

It is not a de Polignac number, because 630801 - 2² = 630797 is a prime.

630801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (630803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456 + ... + 1838.

It is an arithmetic number, because the mean of its divisors is an integer number (59520).

2⁶³⁰⁸⁰¹ is an apocalyptic number.

630801 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

630801 is a deficient number, since it is larger than the sum of its proper divisors (321519).

630801 is a wasteful number, since it uses less digits than its factorization.

630801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 630801 is about 794.2298156075. The cubic root of 630801 is about 85.7625050116.

Adding to 630801 its reverse (108036), we get a palindrome (738837).

It can be divided in two parts, 630 and 801, that added together give a triangular number (1431 = T₅₃).

The spelling of 630801 in words is "six hundred thirty thousand, eight hundred one".