4397385457 has 2 divisors, whose sum is σ = 4397385458. Its totient is φ = 4397385456.

The previous prime is 4397385431. The next prime is 4397385491. The reversal of 4397385457 is 7545837934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4166831601 + 230553856 = 64551^2 + 15184^2 .

It is a cyclic number.

It is not a de Polignac number, because 4397385457 - 2⁷ = 4397385329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4397385398 and 4397385407.

It is not a weakly prime, because it can be changed into another prime (4397385757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2198692728 + 2198692729.

It is an arithmetic number, because the mean of its divisors is an integer number (2198692729).

Almost surely, 2^4397385457 is an apocalyptic number.

It is an amenable number.

4397385457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4397385457 is an equidigital number, since it uses as much as digits as its factorization.

4397385457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 55.

The square root of 4397385457 is about 66312.7850191801. The cubic root of 4397385457 is about 1638.3179086056.

The spelling of 4397385457 in words is "four billion, three hundred ninety-seven million, three hundred eighty-five thousand, four hundred fifty-seven".