629404739 has 2 divisors, whose sum is σ = 629404740. Its totient is φ = 629404738.

The previous prime is 629404703. The next prime is 629404781. The reversal of 629404739 is 937404926.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-629404739 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 629404739.

It is not a weakly prime, because it can be changed into another prime (629404799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314702369 + 314702370.

It is an arithmetic number, because the mean of its divisors is an integer number (314702370).

Almost surely, 2^629404739 is an apocalyptic number.

629404739 is a deficient number, since it is larger than the sum of its proper divisors (1).

629404739 is an equidigital number, since it uses as much as digits as its factorization.

629404739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 629404739 is about 25087.9401107385. The cubic root of 629404739 is about 856.9918060239.

The spelling of 629404739 in words is "six hundred twenty-nine million, four hundred four thousand, seven hundred thirty-nine".