1099964 has 12 divisors (see below), whose sum is σ = 1951824. Its totient is φ = 542304.

The previous prime is 1099961. The next prime is 1099997. The reversal of 1099964 is 4699901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1592 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (162652).

2^1099964 is an apocalyptic number.

It is an amenable number.

1099964 is a deficient number, since it is larger than the sum of its proper divisors (851860).

1099964 is a wasteful number, since it uses less digits than its factorization.

1099964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844 (or 3842 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 1099964 is about 1048.7916857031. The cubic root of 1099964 is about 103.2268854096.

The spelling of 1099964 in words is "one million, ninety-nine thousand, nine hundred sixty-four".