77734057 has 2 divisors, whose sum is σ = 77734058. Its totient is φ = 77734056.

The previous prime is 77734021. The next prime is 77734079. The reversal of 77734057 is 75043777.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40144896 + 37589161 = 6336^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 77734057 - 2¹¹ = 77732009 is a prime.

It is not a weakly prime, because it can be changed into another prime (77434057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38867028 + 38867029.

It is an arithmetic number, because the mean of its divisors is an integer number (38867029).

Almost surely, 2^77734057 is an apocalyptic number.

It is an amenable number.

77734057 is a deficient number, since it is larger than the sum of its proper divisors (1).

77734057 is an equidigital number, since it uses as much as digits as its factorization.

77734057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144060, while the sum is 40.

The square root of 77734057 is about 8816.6919533349. The cubic root of 77734057 is about 426.7797239324.

The spelling of 77734057 in words is "seventy-seven million, seven hundred thirty-four thousand, fifty-seven".