3428211987 has 12 divisors (see below), whose sum is σ = 4952616760. Its totient is φ = 2285126208.

The previous prime is 3428211979. The next prime is 3428212013. The reversal of 3428211987 is 7891128243.

It is a happy number.

3428211987 is a `hidden beast` number, since 3 + 428 + 211 + 9 + 8 + 7 = 666.

3428211987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3428211987 - 2³ = 3428211979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3428211947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42564 + ... + 93102.

Almost surely, 2^3428211987 is an apocalyptic number.

3428211987 is a deficient number, since it is larger than the sum of its proper divisors (1524404773).

3428211987 is a wasteful number, since it uses less digits than its factorization.

3428211987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58082 (or 58079 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3428211987 is about 58550.9349797251. The cubic root of 3428211987 is about 1507.8421859620.

The spelling of 3428211987 in words is "three billion, four hundred twenty-eight million, two hundred eleven thousand, nine hundred eighty-seven".