86623417 has 4 divisors (see below), whose sum is σ = 86685300. Its totient is φ = 86561536.

The previous prime is 86623409. The next prime is 86623423. The reversal of 86623417 is 71432668.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39137536 + 47485881 = 6256^2 + 6891^2 .

It is a cyclic number.

It is not a de Polignac number, because 86623417 - 2³ = 86623409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86623487) 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, 28792 + ... + 31657.

It is an arithmetic number, because the mean of its divisors is an integer number (21671325).

Almost surely, 2^86623417 is an apocalyptic number.

It is an amenable number.

86623417 is a deficient number, since it is larger than the sum of its proper divisors (61883).

86623417 is a wasteful number, since it uses less digits than its factorization.

86623417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61882.

The product of its digits is 48384, while the sum is 37.

The square root of 86623417 is about 9307.1701929212. The cubic root of 86623417 is about 442.4645052232.

The spelling of 86623417 in words is "eighty-six million, six hundred twenty-three thousand, four hundred seventeen".