629999997 has 8 divisors (see below), whose sum is σ = 916363680. Its totient is φ = 381818160.

The previous prime is 629999983. The next prime is 630000013. The reversal of 629999997 is 799999926.

629999997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 629999997 - 2¹⁸ = 629737853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629999917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9545422 + ... + 9545487.

It is an arithmetic number, because the mean of its divisors is an integer number (114545460).

Almost surely, 2^629999997 is an apocalyptic number.

It is an amenable number.

629999997 is a deficient number, since it is larger than the sum of its proper divisors (286363683).

629999997 is a wasteful number, since it uses less digits than its factorization.

629999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19090923.

The product of its digits is 44641044, while the sum is 69.

The square root of 629999997 is about 25099.8007362608. The cubic root of 629999997 is about 857.2618868706.

It can be divided in two parts, 6 and 29999997, that added together give a palindrome (30000003).

The spelling of 629999997 in words is "six hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-seven".