67425769 has 2 divisors, whose sum is σ = 67425770. Its totient is φ = 67425768.

The previous prime is 67425739. The next prime is 67425781. The reversal of 67425769 is 96752476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41538025 + 25887744 = 6445^2 + 5088^2 .

It is a cyclic number.

It is not a de Polignac number, because 67425769 - 2¹⁷ = 67294697 is a prime.

It is a super-2 number, since 2×67425769² = 9092468650482722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67425739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33712884 + 33712885.

It is an arithmetic number, because the mean of its divisors is an integer number (33712885).

Almost surely, 2^67425769 is an apocalyptic number.

It is an amenable number.

67425769 is a deficient number, since it is larger than the sum of its proper divisors (1).

67425769 is an equidigital number, since it uses as much as digits as its factorization.

67425769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 46.

The square root of 67425769 is about 8211.3195650882. The cubic root of 67425769 is about 407.0133329770.

The spelling of 67425769 in words is "sixty-seven million, four hundred twenty-five thousand, seven hundred sixty-nine".