629973943 has 2 divisors, whose sum is σ = 629973944. Its totient is φ = 629973942.

The previous prime is 629973871. The next prime is 629973959. The reversal of 629973943 is 349379926.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 629973943 - 2⁹ = 629973431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (629943943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314986971 + 314986972.

It is an arithmetic number, because the mean of its divisors is an integer number (314986972).

Almost surely, 2^629973943 is an apocalyptic number.

629973943 is a deficient number, since it is larger than the sum of its proper divisors (1).

629973943 is an equidigital number, since it uses as much as digits as its factorization.

629973943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 52.

The square root of 629973943 is about 25099.2817227904. The cubic root of 629973943 is about 857.2500691938.

The spelling of 629973943 in words is "six hundred twenty-nine million, nine hundred seventy-three thousand, nine hundred forty-three".