121796688 has 80 divisors (see below), whose sum is σ = 356713280. Its totient is φ = 35500032.

The previous prime is 121796663. The next prime is 121796713. The reversal of 121796688 is 886697121.

It is an interprime number because it is at equal distance from previous prime (121796663) and next prime (121796713).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6720 + ... + 16992.

It is an arithmetic number, because the mean of its divisors is an integer number (4458916).

Almost surely, 2^121796688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121796688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178356640).

121796688 is an abundant number, since it is smaller than the sum of its proper divisors (234916592).

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

121796688 is a wasteful number, since it uses less digits than its factorization.

121796688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10316 (or 10310 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 121796688 is about 11036.1536777992. The cubic root of 121796688 is about 495.6919045701.

The spelling of 121796688 in words is "one hundred twenty-one million, seven hundred ninety-six thousand, six hundred eighty-eight".