77012633 has 2 divisors, whose sum is σ = 77012634. Its totient is φ = 77012632.

The previous prime is 77012609. The next prime is 77012647. The reversal of 77012633 is 33621077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60715264 + 16297369 = 7792^2 + 4037^2 .

It is a cyclic number.

It is not a de Polignac number, because 77012633 - 2¹⁸ = 76750489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77012596 and 77012605.

It is not a weakly prime, because it can be changed into another prime (77012333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38506316 + 38506317.

It is an arithmetic number, because the mean of its divisors is an integer number (38506317).

Almost surely, 2^77012633 is an apocalyptic number.

It is an amenable number.

77012633 is a deficient number, since it is larger than the sum of its proper divisors (1).

77012633 is an equidigital number, since it uses as much as digits as its factorization.

77012633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 77012633 is about 8775.6841898510. The cubic root of 77012633 is about 425.4553514018.

The spelling of 77012633 in words is "seventy-seven million, twelve thousand, six hundred thirty-three".