629789069 has 32 divisors (see below), whose sum is σ = 807770880. Its totient is φ = 477734400.

The previous prime is 629789023. The next prime is 629789081. The reversal of 629789069 is 960987926.

It is not a de Polignac number, because 629789069 - 2¹⁶ = 629723533 is a prime.

It is a super-2 number, since 2×629789069² = 793268542863773522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629789869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218699 + ... + 221559.

It is an arithmetic number, because the mean of its divisors is an integer number (25242840).

Almost surely, 2^629789069 is an apocalyptic number.

It is an amenable number.

629789069 is a deficient number, since it is larger than the sum of its proper divisors (177981811).

629789069 is a wasteful number, since it uses less digits than its factorization.

629789069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 629789069 is about 25095.5985981606. The cubic root of 629789069 is about 857.1662039501.

The spelling of 629789069 in words is "six hundred twenty-nine million, seven hundred eighty-nine thousand, sixty-nine".