67220297 has 2 divisors, whose sum is σ = 67220298. Its totient is φ = 67220296.

The previous prime is 67220291. The next prime is 67220303. The reversal of 67220297 is 79202276.

It is a balanced prime because it is at equal distance from previous prime (67220291) and next prime (67220303).

It can be written as a sum of positive squares in only one way, i.e., 66846976 + 373321 = 8176^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 67220297 - 2⁴ = 67220281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67220291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33610148 + 33610149.

It is an arithmetic number, because the mean of its divisors is an integer number (33610149).

Almost surely, 2^67220297 is an apocalyptic number.

It is an amenable number.

67220297 is a deficient number, since it is larger than the sum of its proper divisors (1).

67220297 is an equidigital number, since it uses as much as digits as its factorization.

67220297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 67220297 is about 8198.7985095378. The cubic root of 67220297 is about 406.5994707422.

The spelling of 67220297 in words is "sixty-seven million, two hundred twenty thousand, two hundred ninety-seven".