629649 has 12 divisors (see below), whose sum is σ = 931216. Its totient is φ = 409752.

The previous prime is 629623. The next prime is 629653. The reversal of 629649 is 946926.

629649 is a `hidden beast` number, since 6 + 2 + 9 + 649 = 666.

629649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

629649 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 629649 - 2⁵ = 629617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (629609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427 + ... + 1200.

2⁶²⁹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

629649 is a deficient number, since it is larger than the sum of its proper divisors (301567).

629649 is a wasteful number, since it uses less digits than its factorization.

629649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1673 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 629649 is about 793.5042532967. The cubic root of 629649 is about 85.7102652876.

The spelling of 629649 in words is "six hundred twenty-nine thousand, six hundred forty-nine".