1164866 has 4 divisors (see below), whose sum is σ = 1747302. Its totient is φ = 582432.

The previous prime is 1164859. The next prime is 1164869. The reversal of 1164866 is 6684611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6684611 = 107 ⋅62473.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 625 = 1079^2 + 25^2 .

It is not an unprimeable number, because it can be changed into a prime (1164869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291215 + ... + 291218.

2^1164866 is an apocalyptic number.

1164866 is a deficient number, since it is larger than the sum of its proper divisors (582436).

1164866 is an equidigital number, since it uses as much as digits as its factorization.

1164866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582435.

The product of its digits is 6912, while the sum is 32.

The square root of 1164866 is about 1079.2895811598. The cubic root of 1164866 is about 105.2184717958.

The spelling of 1164866 in words is "one million, one hundred sixty-four thousand, eight hundred sixty-six".