3728977660 has 24 divisors (see below), whose sum is σ = 8042499360. Its totient is φ = 1451277504.

The previous prime is 3728977621. The next prime is 3728977667. The reversal of 3728977660 is 667798273.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728977667) 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, 2518840 + ... + 2520319.

It is an arithmetic number, because the mean of its divisors is an integer number (335104140).

Almost surely, 2^3728977660 is an apocalyptic number.

It is an amenable number.

3728977660 is an abundant number, since it is smaller than the sum of its proper divisors (4313521700).

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

3728977660 is a wasteful number, since it uses less digits than its factorization.

3728977660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039205 (or 5039203 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The square root of 3728977660 is about 61065.3556445879. The cubic root of 3728977660 is about 1550.7076421954.

The spelling of 3728977660 in words is "three billion, seven hundred twenty-eight million, nine hundred seventy-seven thousand, six hundred sixty".