121684670 has 8 divisors (see below), whose sum is σ = 219032424. Its totient is φ = 48673864.

The previous prime is 121684637. The next prime is 121684687. The reversal of 121684670 is 76486121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121684670.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6084224 + ... + 6084243.

It is an arithmetic number, because the mean of its divisors is an integer number (27379053).

Almost surely, 2^121684670 is an apocalyptic number.

121684670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121684670 is a deficient number, since it is larger than the sum of its proper divisors (97347754).

121684670 is a wasteful number, since it uses less digits than its factorization.

121684670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168474.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 121684670 is about 11031.0774632399. The cubic root of 121684670 is about 495.5398931917.

The spelling of 121684670 in words is "one hundred twenty-one million, six hundred eighty-four thousand, six hundred seventy".