64272457 has 2 divisors, whose sum is σ = 64272458. Its totient is φ = 64272456.

The previous prime is 64272451. The next prime is 64272463. The reversal of 64272457 is 75427246.

64272457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (64272451) and next prime (64272463).

It can be written as a sum of positive squares in only one way, i.e., 53056656 + 11215801 = 7284^2 + 3349^2 .

It is a cyclic number.

It is not a de Polignac number, because 64272457 - 2³ = 64272449 is a prime.

It is not a weakly prime, because it can be changed into another prime (64272451) 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, 32136228 + 32136229.

It is an arithmetic number, because the mean of its divisors is an integer number (32136229).

Almost surely, 2^64272457 is an apocalyptic number.

It is an amenable number.

64272457 is a deficient number, since it is larger than the sum of its proper divisors (1).

64272457 is an equidigital number, since it uses as much as digits as its factorization.

64272457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 37.

The square root of 64272457 is about 8017.0104777280. The cubic root of 64272457 is about 400.5668151720.

The spelling of 64272457 in words is "sixty-four million, two hundred seventy-two thousand, four hundred fifty-seven".