1170728207 has 4 divisors (see below), whose sum is σ = 1277158056. Its totient is φ = 1064298360.

The previous prime is 1170728203. The next prime is 1170728213. The reversal of 1170728207 is 7028270711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1170728207 - 2² = 1170728203 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 (1170728201) 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, 53214908 + ... + 53214929.

It is an arithmetic number, because the mean of its divisors is an integer number (319289514).

Almost surely, 2^1170728207 is an apocalyptic number.

1170728207 is a deficient number, since it is larger than the sum of its proper divisors (106429849).

1170728207 is a wasteful number, since it uses less digits than its factorization.

1170728207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106429848.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 1170728207 is about 34215.9057603332. The cubic root of 1170728207 is about 1053.9468108764.

Adding to 1170728207 its reverse (7028270711), we get a palindrome (8198998918).

The spelling of 1170728207 in words is "one billion, one hundred seventy million, seven hundred twenty-eight thousand, two hundred seven".