67891363 has 2 divisors, whose sum is σ = 67891364. Its totient is φ = 67891362.

The previous prime is 67891339. The next prime is 67891379. The reversal of 67891363 is 36319876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67891363 - 2¹⁷ = 67760291 is a prime.

It is not a weakly prime, because it can be changed into another prime (67891303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33945681 + 33945682.

It is an arithmetic number, because the mean of its divisors is an integer number (33945682).

Almost surely, 2^67891363 is an apocalyptic number.

67891363 is a deficient number, since it is larger than the sum of its proper divisors (1).

67891363 is an equidigital number, since it uses as much as digits as its factorization.

67891363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 67891363 is about 8239.6215325705. The cubic root of 67891363 is about 407.9480321962.

It can be divided in two parts, 678913 and 63, that added together give a square (678976 = 824²).

The spelling of 67891363 in words is "sixty-seven million, eight hundred ninety-one thousand, three hundred sixty-three".