121782704 has 20 divisors (see below), whose sum is σ = 248373240. Its totient is φ = 57686400.

The previous prime is 121782673. The next prime is 121782721. The reversal of 121782704 is 407287121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199997 + ... + 200604.

It is an arithmetic number, because the mean of its divisors is an integer number (12418662).

Almost surely, 2^121782704 is an apocalyptic number.

It is an amenable number.

121782704 is an abundant number, since it is smaller than the sum of its proper divisors (126590536).

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

121782704 is a wasteful number, since it uses less digits than its factorization.

121782704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400628 (or 400622 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 121782704 is about 11035.5201055501. The cubic root of 121782704 is about 495.6729330063.

The spelling of 121782704 in words is "one hundred twenty-one million, seven hundred eighty-two thousand, seven hundred four".