1163898 has 12 divisors (see below), whose sum is σ = 2521818. Its totient is φ = 387960.

The previous prime is 1163891. The next prime is 1163923. The reversal of 1163898 is 8983611.

1163898 is a `hidden beast` number, since 11 + 638 + 9 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1159929 + 3969 = 1077^2 + 63^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1163891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32313 + ... + 32348.

2^1163898 is an apocalyptic number.

1163898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1163898 is an abundant number, since it is smaller than the sum of its proper divisors (1357920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163898 is a wasteful number, since it uses less digits than its factorization.

1163898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64669 (or 64666 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1163898 is about 1078.8410448254. The cubic root of 1163898 is about 105.1893183119.

The spelling of 1163898 in words is "one million, one hundred sixty-three thousand, eight hundred ninety-eight".