121893888 has 44 divisors (see below), whose sum is σ = 324899840. Its totient is φ = 40630272.

The previous prime is 121893869. The next prime is 121893899. The reversal of 121893888 is 888398121.

It is a super-3 number, since 3×121893888³ (a number of 25 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 16768 + ... + 22911.

Almost surely, 2^121893888 is an apocalyptic number.

It is an amenable number.

121893888 is an abundant number, since it is smaller than the sum of its proper divisors (203005952).

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

121893888 is an equidigital number, since it uses as much as digits as its factorization.

121893888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39702 (or 39684 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 121893888 is about 11040.5565077128. The cubic root of 121893888 is about 495.8237320238.

The spelling of 121893888 in words is "one hundred twenty-one million, eight hundred ninety-three thousand, eight hundred eighty-eight".