86176421 has 4 divisors (see below), whose sum is σ = 86504352. Its totient is φ = 85848492.

The previous prime is 86176379. The next prime is 86176477. The reversal of 86176421 is 12467168.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86176421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86176481) 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, 163571 + ... + 164096.

It is an arithmetic number, because the mean of its divisors is an integer number (21626088).

Almost surely, 2^86176421 is an apocalyptic number.

It is an amenable number.

86176421 is a deficient number, since it is larger than the sum of its proper divisors (327931).

86176421 is a wasteful number, since it uses less digits than its factorization.

86176421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327930.

The product of its digits is 16128, while the sum is 35.

The square root of 86176421 is about 9283.1256050966. The cubic root of 86176421 is about 441.7021207724.

The spelling of 86176421 in words is "eighty-six million, one hundred seventy-six thousand, four hundred twenty-one".