3728855801 has 16 divisors (see below), whose sum is σ = 4207804416. Its totient is φ = 3273690000.

The previous prime is 3728855797. The next prime is 3728855821. The reversal of 3728855801 is 1085588273.

It is a cyclic number.

It is not a de Polignac number, because 3728855801 - 2² = 3728855797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3728855821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156296 + ... + 178566.

It is an arithmetic number, because the mean of its divisors is an integer number (262987776).

Almost surely, 2^3728855801 is an apocalyptic number.

3728855801 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3728855801 is a deficient number, since it is larger than the sum of its proper divisors (478948615).

3728855801 is a wasteful number, since it uses less digits than its factorization.

3728855801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22804.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 3728855801 is about 61064.3578611943. The cubic root of 3728855801 is about 1550.6907501892.

The spelling of 3728855801 in words is "three billion, seven hundred twenty-eight million, eight hundred fifty-five thousand, eight hundred one".