639350003 has 2 divisors, whose sum is σ = 639350004. Its totient is φ = 639350002.

The previous prime is 639349993. The next prime is 639350011. The reversal of 639350003 is 300053936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 639350003 - 2⁶ = 639349939 is a prime.

It is a super-2 number, since 2×639350003² = 817536852672200018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (639350053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319675001 + 319675002.

It is an arithmetic number, because the mean of its divisors is an integer number (319675002).

Almost surely, 2^639350003 is an apocalyptic number.

639350003 is a deficient number, since it is larger than the sum of its proper divisors (1).

639350003 is an equidigital number, since it uses as much as digits as its factorization.

639350003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 29.

The square root of 639350003 is about 25285.3713241471. The cubic root of 639350003 is about 861.4820321718.

The spelling of 639350003 in words is "six hundred thirty-nine million, three hundred fifty thousand, three".