67926321 has 12 divisors (see below), whose sum is σ = 98433348. Its totient is φ = 45137664.

The previous prime is 67926319. The next prime is 67926329. The reversal of 67926321 is 12362976.

It can be written as a sum of positive squares in 2 ways, for example, as 16646400 + 51279921 = 4080^2 + 7161^2 .

It is not a de Polignac number, because 67926321 - 2¹ = 67926319 is a prime.

It is a super-2 number, since 2×67926321² = 9227970169190082, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67926329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9240 + ... + 14873.

It is an arithmetic number, because the mean of its divisors is an integer number (8202779).

Almost surely, 2^67926321 is an apocalyptic number.

It is an amenable number.

67926321 is a deficient number, since it is larger than the sum of its proper divisors (30507027).

67926321 is a wasteful number, since it uses less digits than its factorization.

67926321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24432 (or 24429 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 67926321 is about 8241.7425948643. The cubic root of 67926321 is about 408.0180391390.

It can be divided in two parts, 679 and 26321, that added together give a cube (27000 = 30³).

The spelling of 67926321 in words is "sixty-seven million, nine hundred twenty-six thousand, three hundred twenty-one".