68698541 has 2 divisors, whose sum is σ = 68698542. Its totient is φ = 68698540.

The previous prime is 68698499. The next prime is 68698559. The reversal of 68698541 is 14589686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68128516 + 570025 = 8254^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 68698541 - 2¹⁸ = 68436397 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 (68698561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34349270 + 34349271.

It is an arithmetic number, because the mean of its divisors is an integer number (34349271).

Almost surely, 2^68698541 is an apocalyptic number.

It is an amenable number.

68698541 is a deficient number, since it is larger than the sum of its proper divisors (1).

68698541 is an equidigital number, since it uses as much as digits as its factorization.

68698541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The square root of 68698541 is about 8288.4583005526. The cubic root of 68698541 is about 409.5584002049.

The spelling of 68698541 in words is "sixty-eight million, six hundred ninety-eight thousand, five hundred forty-one".