86375421 has 12 divisors (see below), whose sum is σ = 136106880. Its totient is φ = 52348680.

The previous prime is 86375389. The next prime is 86375431. The reversal of 86375421 is 12457368.

86375421 is a `hidden beast` number, since 86 + 37 + 542 + 1 = 666.

It is not a de Polignac number, because 86375421 - 2⁵ = 86375389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86375431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436141 + ... + 436338.

It is an arithmetic number, because the mean of its divisors is an integer number (11342240).

Almost surely, 2^86375421 is an apocalyptic number.

It is an amenable number.

86375421 is a deficient number, since it is larger than the sum of its proper divisors (49731459).

86375421 is a wasteful number, since it uses less digits than its factorization.

86375421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872496 (or 872493 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 86375421 is about 9293.8377971643. The cubic root of 86375421 is about 442.0418546526.

The spelling of 86375421 in words is "eighty-six million, three hundred seventy-five thousand, four hundred twenty-one".