68415377 has 2 divisors, whose sum is σ = 68415378. Its totient is φ = 68415376.

The previous prime is 68415341. The next prime is 68415433. The reversal of 68415377 is 77351486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59228416 + 9186961 = 7696^2 + 3031^2 .

It is a cyclic number.

It is not a de Polignac number, because 68415377 - 2⁶ = 68415313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68415307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34207688 + 34207689.

It is an arithmetic number, because the mean of its divisors is an integer number (34207689).

Almost surely, 2^68415377 is an apocalyptic number.

It is an amenable number.

68415377 is a deficient number, since it is larger than the sum of its proper divisors (1).

68415377 is an equidigital number, since it uses as much as digits as its factorization.

68415377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 68415377 is about 8271.3588363702. The cubic root of 68415377 is about 408.9949146810.

It can be divided in two parts, 684 and 15377, that added together give a palindrome (16061).

The spelling of 68415377 in words is "sixty-eight million, four hundred fifteen thousand, three hundred seventy-seven".