67499461 has 2 divisors, whose sum is σ = 67499462. Its totient is φ = 67499460.

The previous prime is 67499459. The next prime is 67499477. The reversal of 67499461 is 16499476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44756100 + 22743361 = 6690^2 + 4769^2 .

It is a cyclic number.

It is not a de Polignac number, because 67499461 - 2¹ = 67499459 is a prime.

Together with 67499459, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3979558 and since 67499461 and 3979558 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67499261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33749730 + 33749731.

It is an arithmetic number, because the mean of its divisors is an integer number (33749731).

Almost surely, 2^67499461 is an apocalyptic number.

It is an amenable number.

67499461 is a deficient number, since it is larger than the sum of its proper divisors (1).

67499461 is an equidigital number, since it uses as much as digits as its factorization.

67499461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 67499461 is about 8215.8055600166. The cubic root of 67499461 is about 407.1615587300.

The spelling of 67499461 in words is "sixty-seven million, four hundred ninety-nine thousand, four hundred sixty-one".