3728798997 has 64 divisors (see below), whose sum is σ = 6458296320. Its totient is φ = 1857484800.

The previous prime is 3728798977. The next prime is 3728799029. The reversal of 3728798997 is 7998978273.

3728798997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3728798997 - 2⁸ = 3728798741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728798977) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 555453 + ... + 562125.

It is an arithmetic number, because the mean of its divisors is an integer number (100910880).

Almost surely, 2^3728798997 is an apocalyptic number.

It is an amenable number.

3728798997 is a deficient number, since it is larger than the sum of its proper divisors (2729497323).

3728798997 is a wasteful number, since it uses less digits than its factorization.

3728798997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6794.

The product of its digits is 96018048, while the sum is 69.

The square root of 3728798997 is about 61063.8927435846. The cubic root of 3728798997 is about 1550.6828759342.

The spelling of 3728798997 in words is "three billion, seven hundred twenty-eight million, seven hundred ninety-eight thousand, nine hundred ninety-seven".