1157984 has 12 divisors (see below), whose sum is σ = 2279844. Its totient is φ = 578976.

The previous prime is 1157977. The next prime is 1157987. The reversal of 1157984 is 4897511.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18062 + ... + 18125.

It is an arithmetic number, because the mean of its divisors is an integer number (189987).

2^1157984 is an apocalyptic number.

It is an amenable number.

1157984 is a deficient number, since it is larger than the sum of its proper divisors (1121860).

1157984 is an equidigital number, since it uses as much as digits as its factorization.

1157984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36197 (or 36189 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 1157984 is about 1076.0966499344. The cubic root of 1157984 is about 105.0108529976.

The spelling of 1157984 in words is "one million, one hundred fifty-seven thousand, nine hundred eighty-four".