67622861 has 2 divisors, whose sum is σ = 67622862. Its totient is φ = 67622860.

The previous prime is 67622857. The next prime is 67622887. The reversal of 67622861 is 16822676.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57668836 + 9954025 = 7594^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 67622861 - 2² = 67622857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67622851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33811430 + 33811431.

It is an arithmetic number, because the mean of its divisors is an integer number (33811431).

Almost surely, 2^67622861 is an apocalyptic number.

It is an amenable number.

67622861 is a deficient number, since it is larger than the sum of its proper divisors (1).

67622861 is an equidigital number, since it uses as much as digits as its factorization.

67622861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 67622861 is about 8223.3120456420. The cubic root of 67622861 is about 407.4095268804.

The spelling of 67622861 in words is "sixty-seven million, six hundred twenty-two thousand, eight hundred sixty-one".