629861066 has 4 divisors (see below), whose sum is σ = 944791602. Its totient is φ = 314930532.

The previous prime is 629861059. The next prime is 629861087. The reversal of 629861066 is 660168926.

629861066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 609349225 + 20511841 = 24685^2 + 4529^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157465265 + ... + 157465268.

Almost surely, 2^629861066 is an apocalyptic number.

629861066 is a deficient number, since it is larger than the sum of its proper divisors (314930536).

629861066 is a wasteful number, since it uses less digits than its factorization.

629861066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314930535.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 629861066 is about 25097.0330118921. The cubic root of 629861066 is about 857.1988662316.

The spelling of 629861066 in words is "six hundred twenty-nine million, eight hundred sixty-one thousand, sixty-six".