86338421 has 8 divisors (see below), whose sum is σ = 93052344. Its totient is φ = 79634880.

The previous prime is 86338397. The next prime is 86338459. The reversal of 86338421 is 12483368.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 86285521 = 230^2 + 9289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86338421 - 2¹⁰ = 86337397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86338921) 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, 29015 + ... + 31851.

It is an arithmetic number, because the mean of its divisors is an integer number (11631543).

Almost surely, 2^86338421 is an apocalyptic number.

It is an amenable number.

86338421 is a deficient number, since it is larger than the sum of its proper divisors (6713923).

86338421 is a wasteful number, since it uses less digits than its factorization.

86338421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191.

The product of its digits is 27648, while the sum is 35.

The square root of 86338421 is about 9291.8470176817. The cubic root of 86338421 is about 441.9787275717.

The spelling of 86338421 in words is "eighty-six million, three hundred thirty-eight thousand, four hundred twenty-one".