457649761 has 2 divisors, whose sum is σ = 457649762. Its totient is φ = 457649760.

The previous prime is 457649747. The next prime is 457649767. The reversal of 457649761 is 167946754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451817536 + 5832225 = 21256^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 457649761 - 2¹¹ = 457647713 is a prime.

It is not a weakly prime, because it can be changed into another prime (457649767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228824880 + 228824881.

It is an arithmetic number, because the mean of its divisors is an integer number (228824881).

Almost surely, 2^457649761 is an apocalyptic number.

It is an amenable number.

457649761 is a deficient number, since it is larger than the sum of its proper divisors (1).

457649761 is an equidigital number, since it uses as much as digits as its factorization.

457649761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 457649761 is about 21392.7501972047. The cubic root of 457649761 is about 770.6273411125.

The spelling of 457649761 in words is "four hundred fifty-seven million, six hundred forty-nine thousand, seven hundred sixty-one".