67910897 has 2 divisors, whose sum is σ = 67910898. Its totient is φ = 67910896.

The previous prime is 67910839. The next prime is 67910917. The reversal of 67910897 is 79801976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43546801 + 24364096 = 6599^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 67910897 - 2⁶ = 67910833 is a prime.

It is a super-2 number, since 2×67910897² = 9223779862689218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67910197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33955448 + 33955449.

It is an arithmetic number, because the mean of its divisors is an integer number (33955449).

Almost surely, 2^67910897 is an apocalyptic number.

It is an amenable number.

67910897 is a deficient number, since it is larger than the sum of its proper divisors (1).

67910897 is an equidigital number, since it uses as much as digits as its factorization.

67910897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 67910897 is about 8240.8068172965. The cubic root of 67910897 is about 407.9871539753.

The spelling of 67910897 in words is "sixty-seven million, nine hundred ten thousand, eight hundred ninety-seven".