1195778 has 4 divisors (see below), whose sum is σ = 1793670. Its totient is φ = 597888.

The previous prime is 1195771. The next prime is 1195801. The reversal of 1195778 is 8775911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8775911 = 281 ⋅31231.

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 120409 = 1037^2 + 347^2 .

It is not an unprimeable number, because it can be changed into a prime (1195771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 298943 + ... + 298946.

2^1195778 is an apocalyptic number.

1195778 is a deficient number, since it is larger than the sum of its proper divisors (597892).

1195778 is an equidigital number, since it uses as much as digits as its factorization.

1195778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597891.

The product of its digits is 17640, while the sum is 38.

The square root of 1195778 is about 1093.5163464713. The cubic root of 1195778 is about 106.1410842375.

The spelling of 1195778 in words is "one million, one hundred ninety-five thousand, seven hundred seventy-eight".