67676849 has 2 divisors, whose sum is σ = 67676850. Its totient is φ = 67676848.

The previous prime is 67676831. The next prime is 67676863. The reversal of 67676849 is 94867676.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 14386849 = 7300^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 67676849 - 2⁸ = 67676593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67676849.

It is not a weakly prime, because it can be changed into another prime (67676809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33838424 + 33838425.

It is an arithmetic number, because the mean of its divisors is an integer number (33838425).

Almost surely, 2^67676849 is an apocalyptic number.

It is an amenable number.

67676849 is a deficient number, since it is larger than the sum of its proper divisors (1).

67676849 is an equidigital number, since it uses as much as digits as its factorization.

67676849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 67676849 is about 8226.5940096737. The cubic root of 67676849 is about 407.5179190936.

The spelling of 67676849 in words is "sixty-seven million, six hundred seventy-six thousand, eight hundred forty-nine".