86521030 has 32 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 33999456.

The previous prime is 86521027. The next prime is 86521033. The reversal of 86521030 is 3012568.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86521027) and next prime (86521033).

It is a junction number, because it is equal to n+sod(n) for n = 86520986 and 86521004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86521033) 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 15 ways as a sum of consecutive naturals, for example, 171759 + ... + 172261.

It is an arithmetic number, because the mean of its divisors is an integer number (4953312).

Almost surely, 2^86521030 is an apocalyptic number.

86521030 is a deficient number, since it is larger than the sum of its proper divisors (71984954).

86521030 is a wasteful number, since it uses less digits than its factorization.

86521030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 86521030 is about 9301.6681299646. The cubic root of 86521030 is about 442.2901086781.

Adding to 86521030 its reverse (3012568), we get a palindrome (89533598).

The spelling of 86521030 in words is "eighty-six million, five hundred twenty-one thousand, thirty".