77161627 has 2 divisors, whose sum is σ = 77161628. Its totient is φ = 77161626.

The previous prime is 77161621. The next prime is 77161661. The reversal of 77161627 is 72616177.

It is a weak prime.

It is an emirp because it is prime and its reverse (72616177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77161627 - 2¹⁹ = 76637339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77161621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38580813 + 38580814.

It is an arithmetic number, because the mean of its divisors is an integer number (38580814).

Almost surely, 2^77161627 is an apocalyptic number.

77161627 is a deficient number, since it is larger than the sum of its proper divisors (1).

77161627 is an equidigital number, since it uses as much as digits as its factorization.

77161627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 37.

The square root of 77161627 is about 8784.1691126708. The cubic root of 77161627 is about 425.7295464971.

The spelling of 77161627 in words is "seventy-seven million, one hundred sixty-one thousand, six hundred twenty-seven".