77626049 has 2 divisors, whose sum is σ = 77626050. Its totient is φ = 77626048.

The previous prime is 77626033. The next prime is 77626061. The reversal of 77626049 is 94062677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76877824 + 748225 = 8768^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 77626049 - 2⁴ = 77626033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77625997 and 77626015.

It is not a weakly prime, because it can be changed into another prime (77626019) 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, 38813024 + 38813025.

It is an arithmetic number, because the mean of its divisors is an integer number (38813025).

Almost surely, 2^77626049 is an apocalyptic number.

It is an amenable number.

77626049 is a deficient number, since it is larger than the sum of its proper divisors (1).

77626049 is an equidigital number, since it uses as much as digits as its factorization.

77626049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 77626049 is about 8810.5646243586. The cubic root of 77626049 is about 426.5819685256.

The spelling of 77626049 in words is "seventy-seven million, six hundred twenty-six thousand, forty-nine".