1172648 has 8 divisors (see below), whose sum is σ = 2198730. Its totient is φ = 586320.

The previous prime is 1172579. The next prime is 1172657. The reversal of 1172648 is 8462711.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 128164 = 1022^2 + 358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1172648.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73283 + ... + 73298.

2^1172648 is an apocalyptic number.

It is an amenable number.

1172648 is a deficient number, since it is larger than the sum of its proper divisors (1026082).

1172648 is a wasteful number, since it uses less digits than its factorization.

1172648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146587 (or 146583 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 1172648 is about 1082.8887292792. Note that the first 3 decimals coincide. The cubic root of 1172648 is about 105.4522593458.

The spelling of 1172648 in words is "one million, one hundred seventy-two thousand, six hundred forty-eight".