67432397 has 2 divisors, whose sum is σ = 67432398. Its totient is φ = 67432396.

The previous prime is 67432369. The next prime is 67432403. The reversal of 67432397 is 79323476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34035556 + 33396841 = 5834^2 + 5779^2 .

It is a cyclic number.

It is not a de Polignac number, because 67432397 - 2⁶ = 67432333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67432307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33716198 + 33716199.

It is an arithmetic number, because the mean of its divisors is an integer number (33716199).

Almost surely, 2^67432397 is an apocalyptic number.

It is an amenable number.

67432397 is a deficient number, since it is larger than the sum of its proper divisors (1).

67432397 is an equidigital number, since it uses as much as digits as its factorization.

67432397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 41.

The square root of 67432397 is about 8211.7231443833. The cubic root of 67432397 is about 407.0266691047.

The spelling of 67432397 in words is "sixty-seven million, four hundred thirty-two thousand, three hundred ninety-seven".