86685653 has 4 divisors (see below), whose sum is σ = 86892960. Its totient is φ = 86478348.

The previous prime is 86685649. The next prime is 86685661. The reversal of 86685653 is 35658668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86685653 - 2² = 86685649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86685598 and 86685607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86685253) 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, 103025 + ... + 103862.

It is an arithmetic number, because the mean of its divisors is an integer number (21723240).

Almost surely, 2^86685653 is an apocalyptic number.

It is an amenable number.

86685653 is a deficient number, since it is larger than the sum of its proper divisors (207307).

86685653 is a wasteful number, since it uses less digits than its factorization.

86685653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207306.

The product of its digits is 1036800, while the sum is 47.

The square root of 86685653 is about 9310.5130363477. The cubic root of 86685653 is about 442.5704451244.

The spelling of 86685653 in words is "eighty-six million, six hundred eighty-five thousand, six hundred fifty-three".