11371998 has 32 divisors (see below), whose sum is σ = 25287552. Its totient is φ = 3380000.

The previous prime is 11371967. The next prime is 11372017. The reversal of 11371998 is 89917311.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (790236).

Almost surely, 2^11371998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11371998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12643776).

11371998 is an abundant number, since it is smaller than the sum of its proper divisors (13915554).

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

11371998 is a wasteful number, since it uses less digits than its factorization.

11371998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320.

The product of its digits is 13608, while the sum is 39.

The square root of 11371998 is about 3372.2393153512. The cubic root of 11371998 is about 224.8772861711.

The spelling of 11371998 in words is "eleven million, three hundred seventy-one thousand, nine hundred ninety-eight".