858989699 has 4 divisors (see below), whose sum is σ = 860697936. Its totient is φ = 857281464.

The previous prime is 858989693. The next prime is 858989707. The reversal of 858989699 is 996989858.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 858989699 - 2²⁸ = 590554243 is a prime.

It is a super-2 number, since 2×858989699² = 1475726605976221202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (858989693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853364 + ... + 854369.

It is an arithmetic number, because the mean of its divisors is an integer number (215174484).

Almost surely, 2^858989699 is an apocalyptic number.

858989699 is a deficient number, since it is larger than the sum of its proper divisors (1708237).

858989699 is a wasteful number, since it uses less digits than its factorization.

858989699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708236.

The product of its digits is 100776960, while the sum is 71.

The square root of 858989699 is about 29308.5260461866. The cubic root of 858989699 is about 950.5960060580.

The spelling of 858989699 in words is "eight hundred fifty-eight million, nine hundred eighty-nine thousand, six hundred ninety-nine".