457640077 has 2 divisors, whose sum is σ = 457640078. Its totient is φ = 457640076.

The previous prime is 457640059. The next prime is 457640093. The reversal of 457640077 is 770046754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403969801 + 53670276 = 20099^2 + 7326^2 .

It is a cyclic number.

It is not a de Polignac number, because 457640077 - 2¹¹ = 457638029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457640977) 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, 228820038 + 228820039.

It is an arithmetic number, because the mean of its divisors is an integer number (228820039).

Almost surely, 2^457640077 is an apocalyptic number.

It is an amenable number.

457640077 is a deficient number, since it is larger than the sum of its proper divisors (1).

457640077 is an equidigital number, since it uses as much as digits as its factorization.

457640077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 40.

The square root of 457640077 is about 21392.5238576471. The cubic root of 457640077 is about 770.6219055090.

The spelling of 457640077 in words is "four hundred fifty-seven million, six hundred forty thousand, seventy-seven".