68633497 has 2 divisors, whose sum is σ = 68633498. Its totient is φ = 68633496.

The previous prime is 68633431. The next prime is 68633501. The reversal of 68633497 is 79433686.

68633497 is nontrivially palindromic in base 6.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68244121 + 389376 = 8261^2 + 624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68633497 is a prime.

It is not a weakly prime, because it can be changed into another prime (68633297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34316748 + 34316749.

It is an arithmetic number, because the mean of its divisors is an integer number (34316749).

Almost surely, 2^68633497 is an apocalyptic number.

It is an amenable number.

68633497 is a deficient number, since it is larger than the sum of its proper divisors (1).

68633497 is an equidigital number, since it uses as much as digits as its factorization.

68633497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 68633497 is about 8284.5336018390. The cubic root of 68633497 is about 409.4291023188.

The spelling of 68633497 in words is "sixty-eight million, six hundred thirty-three thousand, four hundred ninety-seven".