620561748 has 24 divisors (see below), whose sum is σ = 1466308480. Its totient is φ = 204235200.

The previous prime is 620561741. The next prime is 620561783. The reversal of 620561748 is 847165026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620561741) 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, 326353 + ... + 328248.

Almost surely, 2^620561748 is an apocalyptic number.

It is an amenable number.

620561748 is an abundant number, since it is smaller than the sum of its proper divisors (845746732).

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

620561748 is a wasteful number, since it uses less digits than its factorization.

620561748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654687 (or 654685 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 620561748 is about 24911.0768133375. The cubic root of 620561748 is about 852.9593493994.

The spelling of 620561748 in words is "six hundred twenty million, five hundred sixty-one thousand, seven hundred forty-eight".