3487391887 has 6 divisors (see below), whose sum is σ = 4056762048. Its totient is φ = 2989193004.

The previous prime is 3487391801. The next prime is 3487391911. The reversal of 3487391887 is 7881937843.

It is not a de Polignac number, because 3487391887 - 2⁷ = 3487391759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3487397887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35585583 + ... + 35585680.

It is an arithmetic number, because the mean of its divisors is an integer number (676127008).

Almost surely, 2^3487391887 is an apocalyptic number.

3487391887 is a deficient number, since it is larger than the sum of its proper divisors (569370161).

3487391887 is an equidigital number, since it uses as much as digits as its factorization.

3487391887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71171277 (or 71171270 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 58.

The square root of 3487391887 is about 59054.1436903457. The cubic root of 3487391887 is about 1516.4691658670.

The spelling of 3487391887 in words is "three billion, four hundred eighty-seven million, three hundred ninety-one thousand, eight hundred eighty-seven".