629013901 has 6 divisors (see below), whose sum is σ = 649960206. Its totient is φ = 608722200.

The previous prime is 629013881. The next prime is 629013929. The reversal of 629013901 is 109310926.

It can be written as a sum of positive squares in only one way, i.e., 437855625 + 191158276 = 20925^2 + 13826^2 .

It is not a de Polignac number, because 629013901 - 2⁷ = 629013773 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629013001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326310 + ... + 328231.

It is an arithmetic number, because the mean of its divisors is an integer number (108326701).

Almost surely, 2^629013901 is an apocalyptic number.

It is an amenable number.

629013901 is a deficient number, since it is larger than the sum of its proper divisors (20946305).

629013901 is an equidigital number, since it uses as much as digits as its factorization.

629013901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654603 (or 654572 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 629013901 is about 25080.1495410215. The cubic root of 629013901 is about 856.8143821310.

The spelling of 629013901 in words is "six hundred twenty-nine million, thirteen thousand, nine hundred one".