620695520 has 24 divisors (see below), whose sum is σ = 1466393544. Its totient is φ = 248278144.

The previous prime is 620695519. The next prime is 620695529. The reversal of 620695520 is 25596026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620695529) 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 in 3 ways as a sum of consecutive naturals, for example, 1939514 + ... + 1939833.

It is an arithmetic number, because the mean of its divisors is an integer number (61099731).

Almost surely, 2^620695520 is an apocalyptic number.

It is an amenable number.

620695520 is an abundant number, since it is smaller than the sum of its proper divisors (845698024).

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

620695520 is a wasteful number, since it uses less digits than its factorization.

620695520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879362 (or 3879354 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 620695520 is about 24913.7616589707. The cubic root of 620695520 is about 853.0206346680.

The spelling of 620695520 in words is "six hundred twenty million, six hundred ninety-five thousand, five hundred twenty".