629475641 has 2 divisors, whose sum is σ = 629475642. Its totient is φ = 629475640.

The previous prime is 629475631. The next prime is 629475673. The reversal of 629475641 is 146574926.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406869241 + 222606400 = 20171^2 + 14920^2 .

It is a cyclic number.

It is not a de Polignac number, because 629475641 - 2⁶ = 629475577 is a prime.

It is a super-2 number, since 2×629475641² = 792479165224721762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 629475592 and 629475601.

It is not a weakly prime, because it can be changed into another prime (629475611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314737820 + 314737821.

It is an arithmetic number, because the mean of its divisors is an integer number (314737821).

Almost surely, 2^629475641 is an apocalyptic number.

It is an amenable number.

629475641 is a deficient number, since it is larger than the sum of its proper divisors (1).

629475641 is an equidigital number, since it uses as much as digits as its factorization.

629475641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 629475641 is about 25089.3531403263. The cubic root of 629475641 is about 857.0239846565.

The spelling of 629475641 in words is "six hundred twenty-nine million, four hundred seventy-five thousand, six hundred forty-one".