67469849 has 2 divisors, whose sum is σ = 67469850. Its totient is φ = 67469848.

The previous prime is 67469819. The next prime is 67469851. The reversal of 67469849 is 94896476.

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., 60217600 + 7252249 = 7760^2 + 2693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67469849 is a prime.

Together with 67469851, it forms a pair of twin primes.

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 67469849.

It is not a weakly prime, because it can be changed into another prime (67469819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33734924 + 33734925.

It is an arithmetic number, because the mean of its divisors is an integer number (33734925).

Almost surely, 2^67469849 is an apocalyptic number.

It is an amenable number.

67469849 is a deficient number, since it is larger than the sum of its proper divisors (1).

67469849 is an equidigital number, since it uses as much as digits as its factorization.

67469849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 67469849 is about 8214.0032261985. The cubic root of 67469849 is about 407.1020094563.

Subtracting from 67469849 its sum of digits (53), we obtain a square (67469796 = 8214²).

The spelling of 67469849 in words is "sixty-seven million, four hundred sixty-nine thousand, eight hundred forty-nine".