6408350987 has 4 divisors (see below), whose sum is σ = 6427711896. Its totient is φ = 6388990080.

The previous prime is 6408350959. The next prime is 6408351043. The reversal of 6408350987 is 7890538046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7890538046 = 2 ⋅3945269023.

It is a cyclic number.

It is not a de Polignac number, because 6408350987 - 2²⁰ = 6407302411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6408350947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9679958 + ... + 9680619.

It is an arithmetic number, because the mean of its divisors is an integer number (1606927974).

Almost surely, 2^6408350987 is an apocalyptic number.

6408350987 is a deficient number, since it is larger than the sum of its proper divisors (19360909).

6408350987 is a wasteful number, since it uses less digits than its factorization.

6408350987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19360908.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 6408350987 is about 80052.1766537300. The cubic root of 6408350987 is about 1857.4427209630.

The spelling of 6408350987 in words is "six billion, four hundred eight million, three hundred fifty thousand, nine hundred eighty-seven".