629427 has 4 divisors (see below), whose sum is σ = 839240. Its totient is φ = 419616.

The previous prime is 629417. The next prime is 629429. The reversal of 629427 is 724926.

It is a happy number.

629427 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 629427 - 2⁴ = 629411 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 629394 and 629403.

It is not an unprimeable number, because it can be changed into a prime (629429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104902 + ... + 104907.

It is an arithmetic number, because the mean of its divisors is an integer number (209810).

2⁶²⁹⁴²⁷ is an apocalyptic number.

629427 is a deficient number, since it is larger than the sum of its proper divisors (209813).

629427 is a wasteful number, since it uses less digits than its factorization.

629427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209812.

The product of its digits is 6048, while the sum is 30.

The square root of 629427 is about 793.3643551358. The cubic root of 629427 is about 85.7001909364.

The spelling of 629427 in words is "six hundred twenty-nine thousand, four hundred twenty-seven".