620422767 has 16 divisors (see below), whose sum is σ = 928624480. Its totient is φ = 409349376.

The previous prime is 620422763. The next prime is 620422801. The reversal of 620422767 is 767224026.

620422767 is a `hidden beast` number, since 620 + 4 + 2 + 27 + 6 + 7 = 666.

It is not a de Polignac number, because 620422767 - 2² = 620422763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620422763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115828 + ... + 121065.

It is an arithmetic number, because the mean of its divisors is an integer number (58039030).

Almost surely, 2^620422767 is an apocalyptic number.

620422767 is a deficient number, since it is larger than the sum of its proper divisors (308201713).

620422767 is a wasteful number, since it uses less digits than its factorization.

620422767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236999 (or 236993 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 620422767 is about 24908.2871149343. The cubic root of 620422767 is about 852.8956683907.

The spelling of 620422767 in words is "six hundred twenty million, four hundred twenty-two thousand, seven hundred sixty-seven".