620720576 has 56 divisors (see below), whose sum is σ = 1481815680. Its totient is φ = 252018432.

The previous prime is 620720561. The next prime is 620720579. The reversal of 620720576 is 675027026.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620720579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27950 + ... + 44973.

Almost surely, 2^620720576 is an apocalyptic number.

It is an amenable number.

620720576 is an abundant number, since it is smaller than the sum of its proper divisors (861095104).

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

620720576 is a wasteful number, since it uses less digits than its factorization.

620720576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72961 (or 72951 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 620720576 is about 24914.2645085100. The cubic root of 620720576 is about 853.0321126507.

The spelling of 620720576 in words is "six hundred twenty million, seven hundred twenty thousand, five hundred seventy-six".