1198971 has 12 divisors (see below), whose sum is σ = 1750320. Its totient is φ = 790800.

The previous prime is 1198949. The next prime is 1198973. The reversal of 1198971 is 1798911.

It is not a de Polignac number, because 1198971 - 2¹⁰ = 1197947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (145860).

2^1198971 is an apocalyptic number.

1198971 is a deficient number, since it is larger than the sum of its proper divisors (551349).

1198971 is a wasteful number, since it uses less digits than its factorization.

1198971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its digits is 4536, while the sum is 36.

The square root of 1198971 is about 1094.9753421881. The cubic root of 1198971 is about 106.2354739080.

The spelling of 1198971 in words is "one million, one hundred ninety-eight thousand, nine hundred seventy-one".