1172906 has 16 divisors (see below), whose sum is σ = 2025600. Its totient is φ = 498960.

The previous prime is 1172903. The next prime is 1172921. The reversal of 1172906 is 6092711.

It is not an unprimeable number, because it can be changed into a prime (1172903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (126600).

2^1172906 is an apocalyptic number.

1172906 is a deficient number, since it is larger than the sum of its proper divisors (852694).

1172906 is a wasteful number, since it uses less digits than its factorization.

1172906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1172906 is about 1083.0078485404. The cubic root of 1172906 is about 105.4599924672.

The spelling of 1172906 in words is "one million, one hundred seventy-two thousand, nine hundred six".