67616377 has 2 divisors, whose sum is σ = 67616378. Its totient is φ = 67616376.

The previous prime is 67616359. The next prime is 67616387. The reversal of 67616377 is 77361676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65755881 + 1860496 = 8109^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 67616377 - 2¹¹ = 67614329 is a prime.

It is a super-2 number, since 2×67616377² = 9143948877212258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67616387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33808188 + 33808189.

It is an arithmetic number, because the mean of its divisors is an integer number (33808189).

Almost surely, 2^67616377 is an apocalyptic number.

It is an amenable number.

67616377 is a deficient number, since it is larger than the sum of its proper divisors (1).

67616377 is an equidigital number, since it uses as much as digits as its factorization.

67616377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 43.

The square root of 67616377 is about 8222.9177911493. The cubic root of 67616377 is about 407.3965050129.

The spelling of 67616377 in words is "sixty-seven million, six hundred sixteen thousand, three hundred seventy-seven".