86820485 has 8 divisors (see below), whose sum is σ = 104290200. Its totient is φ = 69385984.

The previous prime is 86820473. The next prime is 86820497. The reversal of 86820485 is 58402868.

It is an interprime number because it is at equal distance from previous prime (86820473) and next prime (86820497).

It can be written as a sum of positive squares in 4 ways, for example, as 49084036 + 37736449 = 7006^2 + 6143^2 .

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 86820485 - 2¹⁰ = 86819461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3032 + ... + 13521.

It is an arithmetic number, because the mean of its divisors is an integer number (13036275).

Almost surely, 2^86820485 is an apocalyptic number.

It is an amenable number.

86820485 is a deficient number, since it is larger than the sum of its proper divisors (17469715).

86820485 is a wasteful number, since it uses less digits than its factorization.

86820485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17607.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 86820485 is about 9317.7510698666. The cubic root of 86820485 is about 442.7997862143.

The spelling of 86820485 in words is "eighty-six million, eight hundred twenty thousand, four hundred eighty-five".