3728740005 has 24 divisors (see below), whose sum is σ = 6585099768. Its totient is φ = 1951138176.

The previous prime is 3728739991. The next prime is 3728740019. The reversal of 3728740005 is 5000478273.

3728740005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3728739991) and next prime (3728740019).

It can be written as a sum of positive squares in 4 ways, for example, as 809174916 + 2919565089 = 28446^2 + 54033^2 .

It is not a de Polignac number, because 3728740005 - 2⁶ = 3728739941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 779322 + ... + 784091.

It is an arithmetic number, because the mean of its divisors is an integer number (274379157).

Almost surely, 2^3728740005 is an apocalyptic number.

It is an amenable number.

3728740005 is a deficient number, since it is larger than the sum of its proper divisors (2856359763).

3728740005 is a wasteful number, since it uses less digits than its factorization.

3728740005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563477 (or 1563474 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 3728740005 is about 61063.4097066320. The cubic root of 3728740005 is about 1550.6746982907.

The spelling of 3728740005 in words is "three billion, seven hundred twenty-eight million, seven hundred forty thousand, five".