67253429 has 2 divisors, whose sum is σ = 67253430. Its totient is φ = 67253428.

The previous prime is 67253413. The next prime is 67253447. The reversal of 67253429 is 92435276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67207204 + 46225 = 8198^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 67253429 - 2⁴ = 67253413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_3965825 and since 67253429 and 3965825 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 67253392 and 67253401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67253029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33626714 + 33626715.

It is an arithmetic number, because the mean of its divisors is an integer number (33626715).

Almost surely, 2^67253429 is an apocalyptic number.

It is an amenable number.

67253429 is a deficient number, since it is larger than the sum of its proper divisors (1).

67253429 is an equidigital number, since it uses as much as digits as its factorization.

67253429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 67253429 is about 8200.8188005833. The cubic root of 67253429 is about 406.6662622797. Note that the first 3 decimals are identical.

The spelling of 67253429 in words is "sixty-seven million, two hundred fifty-three thousand, four hundred twenty-nine".