629455 has 12 divisors (see below), whose sum is σ = 786456. Its totient is φ = 483600.

The previous prime is 629449. The next prime is 629467. The reversal of 629455 is 554926.

It is not a de Polignac number, because 629455 - 2¹⁹ = 105167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

629455 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4740 + ... + 4870.

It is an arithmetic number, because the mean of its divisors is an integer number (65538).

629455 is a Friedman number, since it can be written as 9^2*(6^5-5)+4, using all its digits and the basic arithmetic operations.

2⁶²⁹⁴⁵⁵ is an apocalyptic number.

629455 is a deficient number, since it is larger than the sum of its proper divisors (157001).

629455 is a wasteful number, since it uses less digits than its factorization.

629455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 167 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 629455 is about 793.3820013083. The cubic root of 629455 is about 85.7014617058.

Subtracting from 629455 its reverse (554926), we obtain a square (74529 = 273²).

The spelling of 629455 in words is "six hundred twenty-nine thousand, four hundred fifty-five".