77073361 has 2 divisors, whose sum is σ = 77073362. Its totient is φ = 77073360.

The previous prime is 77073349. The next prime is 77073397. The reversal of 77073361 is 16337077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72846225 + 4227136 = 8535^2 + 2056^2 .

It is an emirp because it is prime and its reverse (16337077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77073361 - 2⁷ = 77073233 is a prime.

It is not a weakly prime, because it can be changed into another prime (77073301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38536680 + 38536681.

It is an arithmetic number, because the mean of its divisors is an integer number (38536681).

Almost surely, 2^77073361 is an apocalyptic number.

It is an amenable number.

77073361 is a deficient number, since it is larger than the sum of its proper divisors (1).

77073361 is an equidigital number, since it uses as much as digits as its factorization.

77073361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 77073361 is about 8779.1435231462. The cubic root of 77073361 is about 425.5671523852.

The spelling of 77073361 in words is "seventy-seven million, seventy-three thousand, three hundred sixty-one".