3888973897 has 4 divisors (see below), whose sum is σ = 3889795840. Its totient is φ = 3888151956.

The previous prime is 3888973871. The next prime is 3888973937. The reversal of 3888973897 is 7983798883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7983798883 = 25457 ⋅313619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3888973897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3888973817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403833 + ... + 413350.

It is an arithmetic number, because the mean of its divisors is an integer number (972448960).

Almost surely, 2^3888973897 is an apocalyptic number.

It is an amenable number.

3888973897 is a deficient number, since it is larger than the sum of its proper divisors (821943).

3888973897 is an equidigital number, since it uses as much as digits as its factorization.

3888973897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821942.

The product of its digits is 146313216, while the sum is 70.

The square root of 3888973897 is about 62361.6380237081. The cubic root of 3888973897 is about 1572.5761183721.

The spelling of 3888973897 in words is "three billion, eight hundred eighty-eight million, nine hundred seventy-three thousand, eight hundred ninety-seven".