626423471 has 2 divisors, whose sum is σ = 626423472. Its totient is φ = 626423470.

The previous prime is 626423453. The next prime is 626423477. The reversal of 626423471 is 174324626.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-626423471 is a prime.

It is a super-3 number, since 3×626423471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (626423477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313211735 + 313211736.

It is an arithmetic number, because the mean of its divisors is an integer number (313211736).

Almost surely, 2^626423471 is an apocalyptic number.

626423471 is a deficient number, since it is larger than the sum of its proper divisors (1).

626423471 is an equidigital number, since it uses as much as digits as its factorization.

626423471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 626423471 is about 25028.4532282760. The cubic root of 626423471 is about 855.6365748246.

The spelling of 626423471 in words is "six hundred twenty-six million, four hundred twenty-three thousand, four hundred seventy-one".