11996478 has 64 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 3525984.

The previous prime is 11996449. The next prime is 11996507. The reversal of 11996478 is 87469911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11996449) and next prime (11996507).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15775 + ... + 16517.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^11996478 is an apocalyptic number.

11996478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11996478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14999040).

11996478 is an abundant number, since it is smaller than the sum of its proper divisors (18001602).

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

11996478 is a wasteful number, since it uses less digits than its factorization.

11996478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 784 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 11996478 is about 3463.5932209196. The cubic root of 11996478 is about 228.9204480770.

The spelling of 11996478 in words is "eleven million, nine hundred ninety-six thousand, four hundred seventy-eight".