3887419897 has 2 divisors, whose sum is σ = 3887419898. Its totient is φ = 3887419896.

The previous prime is 3887419831. The next prime is 3887419909. The reversal of 3887419897 is 7989147883.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2892395961 + 995023936 = 53781^2 + 31544^2 .

It is a cyclic number.

It is not a de Polignac number, because 3887419897 - 2⁷ = 3887419769 is a prime.

It is a super-2 number, since 2×3887419897² = 30224066911182981218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3887419807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1943709948 + 1943709949.

It is an arithmetic number, because the mean of its divisors is an integer number (1943709949).

Almost surely, 2^3887419897 is an apocalyptic number.

It is an amenable number.

3887419897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3887419897 is an equidigital number, since it uses as much as digits as its factorization.

3887419897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 64.

The square root of 3887419897 is about 62349.1771958540. The cubic root of 3887419897 is about 1572.3666279059.

The spelling of 3887419897 in words is "three billion, eight hundred eighty-seven million, four hundred nineteen thousand, eight hundred ninety-seven".