629349971 has 2 divisors, whose sum is σ = 629349972. Its totient is φ = 629349970.

The previous prime is 629349947. The next prime is 629350019. The reversal of 629349971 is 179943926.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 629349971 - 2¹⁴ = 629333587 is a prime.

It is not a weakly prime, because it can be changed into another prime (629342971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314674985 + 314674986.

It is an arithmetic number, because the mean of its divisors is an integer number (314674986).

Almost surely, 2^629349971 is an apocalyptic number.

629349971 is a deficient number, since it is larger than the sum of its proper divisors (1).

629349971 is an equidigital number, since it uses as much as digits as its factorization.

629349971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 50.

The square root of 629349971 is about 25086.8485665298. The cubic root of 629349971 is about 856.9669480982.

The spelling of 629349971 in words is "six hundred twenty-nine million, three hundred forty-nine thousand, nine hundred seventy-one".