3728287107 has 12 divisors (see below), whose sum is σ = 5405179104. Its totient is φ = 2476351440.

The previous prime is 3728287099. The next prime is 3728287133. The reversal of 3728287107 is 7017828273.

It is a happy number.

3728287107 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3728287107 - 2³ = 3728287099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3728287207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 761868 + ... + 766745.

It is an arithmetic number, because the mean of its divisors is an integer number (450431592).

Almost surely, 2^3728287107 is an apocalyptic number.

3728287107 is a deficient number, since it is larger than the sum of its proper divisors (1676891997).

3728287107 is a wasteful number, since it uses less digits than its factorization.

3728287107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528890 (or 1528887 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 3728287107 is about 61059.7011702481. The cubic root of 3728287107 is about 1550.6119133728.

The spelling of 3728287107 in words is "three billion, seven hundred twenty-eight million, two hundred eighty-seven thousand, one hundred seven".