629985995 has 16 divisors (see below), whose sum is σ = 783034560. Its totient is φ = 485998464.

The previous prime is 629985977. The next prime is 629986001. The reversal of 629985995 is 599589926.

It is a happy number.

629985995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 629985995 - 2¹² = 629981899 is a prime.

It is a super-2 number, since 2×629985995² = 793764707792280050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137969 + ... + 142461.

It is an arithmetic number, because the mean of its divisors is an integer number (48939660).

Almost surely, 2^629985995 is an apocalyptic number.

629985995 is a deficient number, since it is larger than the sum of its proper divisors (153048565).

629985995 is a wasteful number, since it uses less digits than its factorization.

629985995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5494.

The product of its digits is 15746400, while the sum is 62.

The square root of 629985995 is about 25099.5218081939. The cubic root of 629985995 is about 857.2555358283.

The spelling of 629985995 in words is "six hundred twenty-nine million, nine hundred eighty-five thousand, nine hundred ninety-five".