3897446563 has 2 divisors, whose sum is σ = 3897446564. Its totient is φ = 3897446562.

The previous prime is 3897446557. The next prime is 3897446629. The reversal of 3897446563 is 3656447983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3897446563 - 2¹³ = 3897438371 is a prime.

It is a super-2 number, since 2×3897446563² = 30380179422881025938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3897446363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1948723281 + 1948723282.

It is an arithmetic number, because the mean of its divisors is an integer number (1948723282).

Almost surely, 2^3897446563 is an apocalyptic number.

3897446563 is a deficient number, since it is larger than the sum of its proper divisors (1).

3897446563 is an equidigital number, since it uses as much as digits as its factorization.

3897446563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 55.

The square root of 3897446563 is about 62429.5327789661. The cubic root of 3897446563 is about 1573.7173146760.

The spelling of 3897446563 in words is "three billion, eight hundred ninety-seven million, four hundred forty-six thousand, five hundred sixty-three".