629986013 has 8 divisors (see below), whose sum is σ = 648167520. Its totient is φ = 611865360.

The previous prime is 629986009. The next prime is 629986057. The reversal of 629986013 is 310689926.

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

It is a cyclic number.

It is not a de Polignac number, because 629986013 - 2² = 629986009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629986613) 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, 6218 + ... + 36036.

It is an arithmetic number, because the mean of its divisors is an integer number (81020940).

Almost surely, 2^629986013 is an apocalyptic number.

It is an amenable number.

629986013 is a deficient number, since it is larger than the sum of its proper divisors (18181507).

629986013 is a wasteful number, since it uses less digits than its factorization.

629986013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30427.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 629986013 is about 25099.5221667664. The cubic root of 629986013 is about 857.2555439928.

The spelling of 629986013 in words is "six hundred twenty-nine million, nine hundred eighty-six thousand, thirteen".