68461697 has 2 divisors, whose sum is σ = 68461698. Its totient is φ = 68461696.

The previous prime is 68461661. The next prime is 68461711. The reversal of 68461697 is 79616486.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67749361 + 712336 = 8231^2 + 844^2 .

It is a cyclic number.

It is not a de Polignac number, because 68461697 - 2¹⁶ = 68396161 is a prime.

It is a super-2 number, since 2×68461697² = 9374007912239618, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68461097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34230848 + 34230849.

It is an arithmetic number, because the mean of its divisors is an integer number (34230849).

Almost surely, 2^68461697 is an apocalyptic number.

It is an amenable number.

68461697 is a deficient number, since it is larger than the sum of its proper divisors (1).

68461697 is an equidigital number, since it uses as much as digits as its factorization.

68461697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 68461697 is about 8274.1583862046. The cubic root of 68461697 is about 409.0871959364.

The spelling of 68461697 in words is "sixty-eight million, four hundred sixty-one thousand, six hundred ninety-seven".