77300897 has 2 divisors, whose sum is σ = 77300898. Its totient is φ = 77300896.

The previous prime is 77300879. The next prime is 77300903. The reversal of 77300897 is 79800377.

It is a happy number.

Together with previous prime (77300879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74373376 + 2927521 = 8624^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 77300897 - 2⁶ = 77300833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77300827) 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, 38650448 + 38650449.

It is an arithmetic number, because the mean of its divisors is an integer number (38650449).

Almost surely, 2^77300897 is an apocalyptic number.

It is an amenable number.

77300897 is a deficient number, since it is larger than the sum of its proper divisors (1).

77300897 is an equidigital number, since it uses as much as digits as its factorization.

77300897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 77300897 is about 8792.0928680264. The cubic root of 77300897 is about 425.9855274386.

The spelling of 77300897 in words is "seventy-seven million, three hundred thousand, eight hundred ninety-seven".