620687085 has 32 divisors (see below), whose sum is σ = 1097245440. Its totient is φ = 298011648.

The previous prime is 620687083. The next prime is 620687113. The reversal of 620687085 is 580786026.

It is not a de Polignac number, because 620687085 - 2¹ = 620687083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620687083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47050 + ... + 58779.

It is an arithmetic number, because the mean of its divisors is an integer number (34288920).

Almost surely, 2^620687085 is an apocalyptic number.

It is an amenable number.

620687085 is a deficient number, since it is larger than the sum of its proper divisors (476558355).

620687085 is a wasteful number, since it uses less digits than its factorization.

620687085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105877.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 620687085 is about 24913.5923744449. The cubic root of 620687085 is about 853.0167705825.

The spelling of 620687085 in words is "six hundred twenty million, six hundred eighty-seven thousand, eighty-five".