457220077 has 2 divisors, whose sum is σ = 457220078. Its totient is φ = 457220076.

The previous prime is 457220051. The next prime is 457220111. The reversal of 457220077 is 770022754.

It is an a-pointer prime, because the next prime (457220111) can be obtained adding 457220077 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372837481 + 84382596 = 19309^2 + 9186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457220077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457220377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228610038 + 228610039.

It is an arithmetic number, because the mean of its divisors is an integer number (228610039).

Almost surely, 2^457220077 is an apocalyptic number.

It is an amenable number.

457220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

457220077 is an equidigital number, since it uses as much as digits as its factorization.

457220077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 457220077 is about 21382.7050907971. The cubic root of 457220077 is about 770.3860868088.

It can be divided in two parts, 4572 and 20077, that added together give a square (24649 = 157²).

The spelling of 457220077 in words is "four hundred fifty-seven million, two hundred twenty thousand, seventy-seven".