121686708 has 48 divisors (see below), whose sum is σ = 333579456. Its totient is φ = 34037760.

The previous prime is 121686683. The next prime is 121686737. The reversal of 121686708 is 807686121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33741 + ... + 37172.

It is an arithmetic number, because the mean of its divisors is an integer number (6949572).

Almost surely, 2^121686708 is an apocalyptic number.

It is an amenable number.

121686708 is an abundant number, since it is smaller than the sum of its proper divisors (211892748).

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

121686708 is a wasteful number, since it uses less digits than its factorization.

121686708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70944 (or 70942 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 121686708 is about 11031.1698382357. The cubic root of 121686708 is about 495.5426596445.

The spelling of 121686708 in words is "one hundred twenty-one million, six hundred eighty-six thousand, seven hundred eight".