67258979 has 2 divisors, whose sum is σ = 67258980. Its totient is φ = 67258978.

The previous prime is 67258963. The next prime is 67258999. The reversal of 67258979 is 97985276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67258979 - 2⁴ = 67258963 is a prime.

It is a super-2 number, since 2×67258979² = 9047540512244882, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67258979.

It is not a weakly prime, because it can be changed into another prime (67258909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33629489 + 33629490.

It is an arithmetic number, because the mean of its divisors is an integer number (33629490).

Almost surely, 2^67258979 is an apocalyptic number.

67258979 is a deficient number, since it is larger than the sum of its proper divisors (1).

67258979 is an equidigital number, since it uses as much as digits as its factorization.

67258979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 67258979 is about 8201.1571744480. The cubic root of 67258979 is about 406.6774485033.

The spelling of 67258979 in words is "sixty-seven million, two hundred fifty-eight thousand, nine hundred seventy-nine".