3216407887 has 8 divisors (see below), whose sum is σ = 4010067072. Its totient is φ = 2506291800.

The previous prime is 3216407879. The next prime is 3216407899. The reversal of 3216407887 is 7887046123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3216407887 - 2³ = 3216407879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216407827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20885689 + ... + 20885842.

It is an arithmetic number, because the mean of its divisors is an integer number (501258384).

Almost surely, 2^3216407887 is an apocalyptic number.

3216407887 is a deficient number, since it is larger than the sum of its proper divisors (793659185).

3216407887 is a wasteful number, since it uses less digits than its factorization.

3216407887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41771549.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 3216407887 is about 56713.3836673496. The cubic root of 3216407887 is about 1476.1269391332.

The spelling of 3216407887 in words is "three billion, two hundred sixteen million, four hundred seven thousand, eight hundred eighty-seven".