67623863 has 2 divisors, whose sum is σ = 67623864. Its totient is φ = 67623862.

The previous prime is 67623851. The next prime is 67623889. The reversal of 67623863 is 36832676.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67623863 - 2⁴ = 67623847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67623863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67623163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33811931 + 33811932.

It is an arithmetic number, because the mean of its divisors is an integer number (33811932).

Almost surely, 2^67623863 is an apocalyptic number.

67623863 is a deficient number, since it is larger than the sum of its proper divisors (1).

67623863 is an equidigital number, since it uses as much as digits as its factorization.

67623863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 41.

The square root of 67623863 is about 8223.3729697734. The cubic root of 67623863 is about 407.4115391305.

It can be divided in two parts, 67623 and 863, that added together give a palindrome (68486).

The spelling of 67623863 in words is "sixty-seven million, six hundred twenty-three thousand, eight hundred sixty-three".