629916677 has 4 divisors (see below), whose sum is σ = 678371820. Its totient is φ = 581461536.

The previous prime is 629916673. The next prime is 629916689. The reversal of 629916677 is 776619926.

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

It can be written as a sum of positive squares in 2 ways, for example, as 182763361 + 447153316 = 13519^2 + 21146^2 .

It is a cyclic number.

It is not a de Polignac number, because 629916677 - 2² = 629916673 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 (629916673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24227552 + ... + 24227577.

It is an arithmetic number, because the mean of its divisors is an integer number (169592955).

Almost surely, 2^629916677 is an apocalyptic number.

It is an amenable number.

629916677 is a deficient number, since it is larger than the sum of its proper divisors (48455143).

629916677 is a wasteful number, since it uses less digits than its factorization.

629916677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48455142.

The product of its digits is 1714608, while the sum is 53.

The square root of 629916677 is about 25098.1409072465. The cubic root of 629916677 is about 857.2240931088.

The spelling of 629916677 in words is "six hundred twenty-nine million, nine hundred sixteen thousand, six hundred seventy-seven".