67249867 has 2 divisors, whose sum is σ = 67249868. Its totient is φ = 67249866.

The previous prime is 67249859. The next prime is 67249883. The reversal of 67249867 is 76894276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67249867 - 2³ = 67249859 is a prime.

It is a super-2 number, since 2×67249867² = 9045089223035378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67249867.

It is not a weakly prime, because it can be changed into another prime (67249817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33624933 + 33624934.

It is an arithmetic number, because the mean of its divisors is an integer number (33624934).

Almost surely, 2^67249867 is an apocalyptic number.

67249867 is a deficient number, since it is larger than the sum of its proper divisors (1).

67249867 is an equidigital number, since it uses as much as digits as its factorization.

67249867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 67249867 is about 8200.6016242712. The cubic root of 67249867 is about 406.6590826171.

The spelling of 67249867 in words is "sixty-seven million, two hundred forty-nine thousand, eight hundred sixty-seven".