3964357897 has 2 divisors, whose sum is σ = 3964357898. Its totient is φ = 3964357896.

The previous prime is 3964357889. The next prime is 3964357909. The reversal of 3964357897 is 7987534693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3897380041 + 66977856 = 62429^2 + 8184^2 .

It is a cyclic number.

It is not a de Polignac number, because 3964357897 - 2³ = 3964357889 is a prime.

It is a super-2 number, since 2×3964357897² = 31432267071012525218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3964357877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982178948 + 1982178949.

It is an arithmetic number, because the mean of its divisors is an integer number (1982178949).

Almost surely, 2^3964357897 is an apocalyptic number.

It is an amenable number.

3964357897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3964357897 is an equidigital number, since it uses as much as digits as its factorization.

3964357897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 61.

The square root of 3964357897 is about 62963.1471338592. The cubic root of 3964357897 is about 1582.6721189552.

The spelling of 3964357897 in words is "three billion, nine hundred sixty-four million, three hundred fifty-seven thousand, eight hundred ninety-seven".