626652947 has 2 divisors, whose sum is σ = 626652948. Its totient is φ = 626652946.

The previous prime is 626652931. The next prime is 626652953. The reversal of 626652947 is 749256626.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 626652947 - 2⁴ = 626652931 is a prime.

It is not a weakly prime, because it can be changed into another prime (626652347) 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, 313326473 + 313326474.

It is an arithmetic number, because the mean of its divisors is an integer number (313326474).

Almost surely, 2^626652947 is an apocalyptic number.

626652947 is a deficient number, since it is larger than the sum of its proper divisors (1).

626652947 is an equidigital number, since it uses as much as digits as its factorization.

626652947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The square root of 626652947 is about 25033.0371109860. The cubic root of 626652947 is about 855.7410430727.

The spelling of 626652947 in words is "six hundred twenty-six million, six hundred fifty-two thousand, nine hundred forty-seven".