629999983 has 2 divisors, whose sum is σ = 629999984. Its totient is φ = 629999982.

The previous prime is 629999947. The next prime is 630000013. The reversal of 629999983 is 389999926.

629999983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 629999983 - 2²¹ = 627902831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629997983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314999991 + 314999992.

It is an arithmetic number, because the mean of its divisors is an integer number (314999992).

Almost surely, 2^629999983 is an apocalyptic number.

629999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

629999983 is an equidigital number, since it uses as much as digits as its factorization.

629999983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17006112, while the sum is 64.

The square root of 629999983 is about 25099.8004573742. The cubic root of 629999983 is about 857.2618805205.

The spelling of 629999983 in words is "six hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-three".