67920938 has 16 divisors (see below), whose sum is σ = 106897920. Its totient is φ = 32324400.

The previous prime is 67920913. The next prime is 67920949. The reversal of 67920938 is 83902976.

It is a super-2 number, since 2×67920938² = 9226507637599688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5198 + ... + 12761.

It is an arithmetic number, because the mean of its divisors is an integer number (6681120).

Almost surely, 2^67920938 is an apocalyptic number.

67920938 is a deficient number, since it is larger than the sum of its proper divisors (38976982).

67920938 is a wasteful number, since it uses less digits than its factorization.

67920938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18053.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 67920938 is about 8241.4160191074. The cubic root of 67920938 is about 408.0072607000.

The spelling of 67920938 in words is "sixty-seven million, nine hundred twenty thousand, nine hundred thirty-eight".