999986067 has 16 divisors (see below), whose sum is σ = 1499753760. Its totient is φ = 666655920.

The previous prime is 999986059. The next prime is 999986069. The reversal of 999986067 is 760689999.

It is not a de Polignac number, because 999986067 - 2³ = 999986059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999985995 and 999986013.

It is not an unprimeable number, because it can be changed into a prime (999986069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226434 + ... + 230807.

It is an arithmetic number, because the mean of its divisors is an integer number (93734610).

Almost surely, 2^999986067 is an apocalyptic number.

999986067 is a deficient number, since it is larger than the sum of its proper divisors (499767693).

999986067 is an frugal number, since it uses more digits than its factorization.

999986067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457262 (or 457244 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The square root of 999986067 is about 31622.5563008432. The cubic root of 999986067 is about 999.9953556451.

The spelling of 999986067 in words is "nine hundred ninety-nine million, nine hundred eighty-six thousand, sixty-seven".