121623788 has 96 divisors (see below), whose sum is σ = 272455680. Its totient is φ = 46785600.

The previous prime is 121623713. The next prime is 121623791. The reversal of 121623788 is 887326121.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 3923333 + ... + 3923363.

It is an arithmetic number, because the mean of its divisors is an integer number (2838080).

Almost surely, 2^121623788 is an apocalyptic number.

It is an amenable number.

121623788 is an abundant number, since it is smaller than the sum of its proper divisors (150831892).

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

121623788 is a wasteful number, since it uses less digits than its factorization.

121623788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 76 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 121623788 is about 11028.3175507418. The cubic root of 121623788 is about 495.4572355798.

The spelling of 121623788 in words is "one hundred twenty-one million, six hundred twenty-three thousand, seven hundred eighty-eight".