188448007 has 4 divisors (see below), whose sum is σ = 205579656. Its totient is φ = 171316360.

The previous prime is 188447939. The next prime is 188448017. The reversal of 188448007 is 700844881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700844881 = 11 ⋅63713171.

It is a cyclic number.

It is not a de Polignac number, because 188448007 - 2⁷ = 188447879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188448017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8565808 + ... + 8565829.

It is an arithmetic number, because the mean of its divisors is an integer number (51394914).

Almost surely, 2^188448007 is an apocalyptic number.

188448007 is a deficient number, since it is larger than the sum of its proper divisors (17131649).

188448007 is a wasteful number, since it uses less digits than its factorization.

188448007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17131648.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 188448007 is about 13727.6366137802. The cubic root of 188448007 is about 573.3201197679.

The spelling of 188448007 in words is "one hundred eighty-eight million, four hundred forty-eight thousand, seven".