86820862 has 8 divisors (see below), whose sum is σ = 133407792. Its totient is φ = 42351600.

The previous prime is 86820847. The next prime is 86820889. The reversal of 86820862 is 26802868.

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

It is a super-3 number, since 3×86820862³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 529314 + ... + 529477.

It is an arithmetic number, because the mean of its divisors is an integer number (16675974).

Almost surely, 2^86820862 is an apocalyptic number.

86820862 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

86820862 is a deficient number, since it is larger than the sum of its proper divisors (46586930).

86820862 is a wasteful number, since it uses less digits than its factorization.

86820862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058834.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 86820862 is about 9317.7713000481. The cubic root of 86820862 is about 442.8004271355.

The spelling of 86820862 in words is "eighty-six million, eight hundred twenty thousand, eight hundred sixty-two".