85827621 has 8 divisors (see below), whose sum is σ = 124840224. Its totient is φ = 52016720.

The previous prime is 85827607. The next prime is 85827641. The reversal of 85827621 is 12672858.

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 85827621 - 2⁷ = 85827493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85827621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85827601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300386 + ... + 1300451.

It is an arithmetic number, because the mean of its divisors is an integer number (15605028).

Almost surely, 2^85827621 is an apocalyptic number.

It is an amenable number.

85827621 is a deficient number, since it is larger than the sum of its proper divisors (39012603).

85827621 is a wasteful number, since it uses less digits than its factorization.

85827621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600851.

The product of its digits is 53760, while the sum is 39.

The square root of 85827621 is about 9264.3197807502. The cubic root of 85827621 is about 441.1053835696.

The spelling of 85827621 in words is "eighty-five million, eight hundred twenty-seven thousand, six hundred twenty-one".