86501001 has 4 divisors (see below), whose sum is σ = 115334672. Its totient is φ = 57667332.

The previous prime is 86500979. The next prime is 86501033. The reversal of 86501001 is 10010568.

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 not a de Polignac number, because 86501001 - 2¹¹ = 86498953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86501071) 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, 14416831 + ... + 14416836.

It is an arithmetic number, because the mean of its divisors is an integer number (28833668).

Almost surely, 2^86501001 is an apocalyptic number.

It is an amenable number.

86501001 is a deficient number, since it is larger than the sum of its proper divisors (28833671).

86501001 is a wasteful number, since it uses less digits than its factorization.

86501001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28833670.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 86501001 is about 9300.5914328068. The cubic root of 86501001 is about 442.2559770447.

Adding to 86501001 its reverse (10010568), we get a palindrome (96511569).

The spelling of 86501001 in words is "eighty-six million, five hundred one thousand, one".