197728007 has 8 divisors (see below), whose sum is σ = 201287520. Its totient is φ = 194198400.

The previous prime is 197727983. The next prime is 197728009. The reversal of 197728007 is 700827791.

197728007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197728007 - 2¹⁴ = 197711623 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 (197728009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6083 + ... + 20795.

It is an arithmetic number, because the mean of its divisors is an integer number (25160940).

Almost surely, 2^197728007 is an apocalyptic number.

197728007 is a deficient number, since it is larger than the sum of its proper divisors (3559513).

197728007 is a wasteful number, since it uses less digits than its factorization.

197728007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14953.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 197728007 is about 14061.5791076251. The cubic root of 197728007 is about 582.5806596845.

The spelling of 197728007 in words is "one hundred ninety-seven million, seven hundred twenty-eight thousand, seven".