67806373 has 2 divisors, whose sum is σ = 67806374. Its totient is φ = 67806372.

The previous prime is 67806371. The next prime is 67806377. The reversal of 67806373 is 37360876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59320804 + 8485569 = 7702^2 + 2913^2 .

It is a cyclic number.

It is not a de Polignac number, because 67806373 - 2¹ = 67806371 is a prime.

Together with 67806371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67806371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33903186 + 33903187.

It is an arithmetic number, because the mean of its divisors is an integer number (33903187).

Almost surely, 2^67806373 is an apocalyptic number.

It is an amenable number.

67806373 is a deficient number, since it is larger than the sum of its proper divisors (1).

67806373 is an equidigital number, since it uses as much as digits as its factorization.

67806373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 67806373 is about 8234.4625204078. The cubic root of 67806373 is about 407.7777308026. Note that the first 4 decimals are identical.

The spelling of 67806373 in words is "sixty-seven million, eight hundred six thousand, three hundred seventy-three".