86021841 has 4 divisors (see below), whose sum is σ = 114695792. Its totient is φ = 57347892.

The previous prime is 86021839. The next prime is 86021843. The reversal of 86021841 is 14812068.

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 an interprime number because it is at equal distance from previous prime (86021839) and next prime (86021843).

It is not a de Polignac number, because 86021841 - 2¹ = 86021839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86021799 and 86021808.

It is not an unprimeable number, because it can be changed into a prime (86021843) 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 3 ways as a sum of consecutive naturals, for example, 14336971 + ... + 14336976.

It is an arithmetic number, because the mean of its divisors is an integer number (28673948).

Almost surely, 2^86021841 is an apocalyptic number.

It is an amenable number.

86021841 is a deficient number, since it is larger than the sum of its proper divisors (28673951).

86021841 is a wasteful number, since it uses less digits than its factorization.

86021841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28673950.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 86021841 is about 9274.7960085384. The cubic root of 86021841 is about 441.4378598575.

The spelling of 86021841 in words is "eighty-six million, twenty-one thousand, eight hundred forty-one".