620626367 has 2 divisors, whose sum is σ = 620626368. Its totient is φ = 620626366.

The previous prime is 620626337. The next prime is 620626421. The reversal of 620626367 is 763626026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620626367 - 2¹⁸ = 620364223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620626367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620626337) 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, 310313183 + 310313184.

It is an arithmetic number, because the mean of its divisors is an integer number (310313184).

Almost surely, 2^620626367 is an apocalyptic number.

620626367 is a deficient number, since it is larger than the sum of its proper divisors (1).

620626367 is an equidigital number, since it uses as much as digits as its factorization.

620626367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 620626367 is about 24912.3737728864. The cubic root of 620626367 is about 852.9889545474.

The spelling of 620626367 in words is "six hundred twenty million, six hundred twenty-six thousand, three hundred sixty-seven".