630824349 has 4 divisors (see below), whose sum is σ = 841099136. Its totient is φ = 420549564.

The previous prime is 630824333. The next prime is 630824351. The reversal of 630824349 is 943428036.

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 not a de Polignac number, because 630824349 - 2⁴ = 630824333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630824329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105137389 + ... + 105137394.

It is an arithmetic number, because the mean of its divisors is an integer number (210274784).

Almost surely, 2^630824349 is an apocalyptic number.

It is an amenable number.

630824349 is a deficient number, since it is larger than the sum of its proper divisors (210274787).

630824349 is a wasteful number, since it uses less digits than its factorization.

630824349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210274786.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 630824349 is about 25116.2168528622. The cubic root of 630824349 is about 857.6356316043.

The spelling of 630824349 in words is "six hundred thirty million, eight hundred twenty-four thousand, three hundred forty-nine".