388872001 has 4 divisors (see below), whose sum is σ = 444425152. Its totient is φ = 333318852.

The previous prime is 388871981. The next prime is 388872013. The reversal of 388872001 is 100278883.

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: 100278883 = 157 ⋅638719.

It is a cyclic number.

It is not a de Polignac number, because 388872001 - 2⁵ = 388871969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388872101) 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, 27776565 + ... + 27776578.

It is an arithmetic number, because the mean of its divisors is an integer number (111106288).

Almost surely, 2^388872001 is an apocalyptic number.

It is an amenable number.

388872001 is a deficient number, since it is larger than the sum of its proper divisors (55553151).

388872001 is an equidigital number, since it uses as much as digits as its factorization.

388872001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55553150.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 388872001 is about 19719.8377528822. The cubic root of 388872001 is about 729.9092906618.

The spelling of 388872001 in words is "three hundred eighty-eight million, eight hundred seventy-two thousand, one".