620544704 has 56 divisors (see below), whose sum is σ = 1347965808. Its totient is φ = 281687040.

The previous prime is 620544677. The next prime is 620544709. The reversal of 620544704 is 407445026.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (620544709) 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 7 ways as a sum of consecutive naturals, for example, 44639 + ... + 56865.

It is an arithmetic number, because the mean of its divisors is an integer number (24070818).

Almost surely, 2^620544704 is an apocalyptic number.

620544704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620544704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673982904).

620544704 is an abundant number, since it is smaller than the sum of its proper divisors (727421104).

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

620544704 is a wasteful number, since it uses less digits than its factorization.

620544704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313 (or 12303 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 620544704 is about 24910.7347141749. The cubic root of 620544704 is about 852.9515403606.

The spelling of 620544704 in words is "six hundred twenty million, five hundred forty-four thousand, seven hundred four".