620772075 has 72 divisors (see below), whose sum is σ = 1386268416. Its totient is φ = 257976000.

The previous prime is 620772067. The next prime is 620772077. The reversal of 620772075 is 570277026.

620772075 is a `hidden beast` number, since 620 + 7 + 7 + 20 + 7 + 5 = 666.

It is not a de Polignac number, because 620772075 - 2³ = 620772067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620772077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 591 + ... + 35240.

It is an arithmetic number, because the mean of its divisors is an integer number (19253728).

Almost surely, 2^620772075 is an apocalyptic number.

620772075 is an abundant number, since it is smaller than the sum of its proper divisors (765496341).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620772075 is a wasteful number, since it uses less digits than its factorization.

620772075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35865 (or 35857 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 620772075 is about 24915.2980114628. The cubic root of 620772075 is about 853.0557030217.

The spelling of 620772075 in words is "six hundred twenty million, seven hundred seventy-two thousand, seventy-five".