121909704 has 32 divisors (see below), whose sum is σ = 348313920. Its totient is φ = 34831296.

The previous prime is 121909679. The next prime is 121909717. The reversal of 121909704 is 407909121.

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 7 ways as a sum of consecutive naturals, for example, 362659 + ... + 362994.

It is an arithmetic number, because the mean of its divisors is an integer number (10884810).

Almost surely, 2^121909704 is an apocalyptic number.

121909704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121909704 is an abundant number, since it is smaller than the sum of its proper divisors (226404216).

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

121909704 is a wasteful number, since it uses less digits than its factorization.

121909704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725669 (or 725665 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 121909704 is about 11041.2727527219. The cubic root of 121909704 is about 495.8451758362.

The spelling of 121909704 in words is "one hundred twenty-one million, nine hundred nine thousand, seven hundred four".