629634649 has 8 divisors (see below), whose sum is σ = 719800128. Its totient is φ = 539523600.

The previous prime is 629634617. The next prime is 629634653. The reversal of 629634649 is 946436926.

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

It is not a de Polignac number, because 629634649 - 2⁵ = 629634617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (629634679) 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, 15279 + ... + 38635.

It is an arithmetic number, because the mean of its divisors is an integer number (89975016).

Almost surely, 2^629634649 is an apocalyptic number.

It is an amenable number.

629634649 is a deficient number, since it is larger than the sum of its proper divisors (90165479).

629634649 is a wasteful number, since it uses less digits than its factorization.

629634649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27215.

The product of its digits is 1679616, while the sum is 49.

The square root of 629634649 is about 25092.5217744251. The cubic root of 629634649 is about 857.0961411140.

The spelling of 629634649 in words is "six hundred twenty-nine million, six hundred thirty-four thousand, six hundred forty-nine".