86651039 has 4 divisors (see below), whose sum is σ = 91211640. Its totient is φ = 82090440.

The previous prime is 86651011. The next prime is 86651053. The reversal of 86651039 is 93015668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86651039 - 2²⁴ = 69873823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86650993 and 86651011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86651009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2280272 + ... + 2280309.

It is an arithmetic number, because the mean of its divisors is an integer number (22802910).

Almost surely, 2^86651039 is an apocalyptic number.

86651039 is a deficient number, since it is larger than the sum of its proper divisors (4560601).

86651039 is a wasteful number, since it uses less digits than its factorization.

86651039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560600.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 86651039 is about 9308.6539843309. The cubic root of 86651039 is about 442.5115304432.

The spelling of 86651039 in words is "eighty-six million, six hundred fifty-one thousand, thirty-nine".