67838121 has 24 divisors (see below), whose sum is σ = 108833760. Its totient is φ = 41743728.

The previous prime is 67838117. The next prime is 67838123. The reversal of 67838121 is 12183876.

It is not a de Polignac number, because 67838121 - 2² = 67838117 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (67838123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2871 + ... + 11996.

It is an arithmetic number, because the mean of its divisors is an integer number (4534740).

Almost surely, 2^67838121 is an apocalyptic number.

It is an amenable number.

67838121 is a deficient number, since it is larger than the sum of its proper divisors (40995639).

67838121 is a wasteful number, since it uses less digits than its factorization.

67838121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902 (or 14883 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 67838121 is about 8236.3900466163. The cubic root of 67838121 is about 407.8413635008.

The spelling of 67838121 in words is "sixty-seven million, eight hundred thirty-eight thousand, one hundred twenty-one".