86529641 has 8 divisors (see below), whose sum is σ = 95177568. Its totient is φ = 78662100.

The previous prime is 86529593. The next prime is 86529697. The reversal of 86529641 is 14692568.

It is a happy number.

It is not a de Polignac number, because 86529641 - 2¹⁴ = 86513257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86522641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31175 + ... + 33836.

It is an arithmetic number, because the mean of its divisors is an integer number (11897196).

Almost surely, 2^86529641 is an apocalyptic number.

It is an amenable number.

86529641 is a deficient number, since it is larger than the sum of its proper divisors (8647927).

86529641 is an equidigital number, since it uses as much as digits as its factorization.

86529641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65044 (or 65022 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 86529641 is about 9302.1309924124. The cubic root of 86529641 is about 442.3047811564.

The spelling of 86529641 in words is "eighty-six million, five hundred twenty-nine thousand, six hundred forty-one".