630685498 has 8 divisors (see below), whose sum is σ = 971596692. Its totient is φ = 306819936.

The previous prime is 630685477. The next prime is 630685501. The reversal of 630685498 is 894586036.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 621155929 + 9529569 = 24923^2 + 3087^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4261315 + ... + 4261462.

Almost surely, 2^630685498 is an apocalyptic number.

630685498 is a deficient number, since it is larger than the sum of its proper divisors (340911194).

630685498 is a wasteful number, since it uses less digits than its factorization.

630685498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8522816.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 630685498 is about 25113.4525304666. The cubic root of 630685498 is about 857.5727021462.

The spelling of 630685498 in words is "six hundred thirty million, six hundred eighty-five thousand, four hundred ninety-eight".