629620898 has 16 divisors (see below), whose sum is σ = 995255520. Its totient is φ = 297906336.

The previous prime is 629620861. The next prime is 629620903. The reversal of 629620898 is 898026926.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26765 + ... + 44447.

It is an arithmetic number, because the mean of its divisors is an integer number (62203470).

Almost surely, 2^629620898 is an apocalyptic number.

629620898 is a deficient number, since it is larger than the sum of its proper divisors (365634622).

629620898 is a wasteful number, since it uses less digits than its factorization.

629620898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18641.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 629620898 is about 25092.2477669897. The cubic root of 629620898 is about 857.0899015088.

The spelling of 629620898 in words is "six hundred twenty-nine million, six hundred twenty thousand, eight hundred ninety-eight".