11923398 has 24 divisors (see below), whose sum is σ = 26533728. Its totient is φ = 3866832.

The previous prime is 11923381. The next prime is 11923403. The reversal of 11923398 is 89332911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8286 + ... + 9617.

It is an arithmetic number, because the mean of its divisors is an integer number (1105572).

Almost surely, 2^11923398 is an apocalyptic number.

11923398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11923398 is an abundant number, since it is smaller than the sum of its proper divisors (14610330).

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

11923398 is a wasteful number, since it uses less digits than its factorization.

11923398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948 (or 17945 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 11923398 is about 3453.0273673981. The cubic root of 11923398 is about 228.4546560156.

It can be divided in two parts, 11923 and 398, that added together give a palindrome (12321).

The spelling of 11923398 in words is "eleven million, nine hundred twenty-three thousand, three hundred ninety-eight".