86394449 has 4 divisors (see below), whose sum is σ = 86534640. Its totient is φ = 86254260.

The previous prime is 86394409. The next prime is 86394481. The reversal of 86394449 is 94449368.

It is a happy number.

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-86394449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86394409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69167 + ... + 70404.

It is an arithmetic number, because the mean of its divisors is an integer number (21633660).

Almost surely, 2^86394449 is an apocalyptic number.

It is an amenable number.

86394449 is a deficient number, since it is larger than the sum of its proper divisors (140191).

86394449 is a wasteful number, since it uses less digits than its factorization.

86394449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140190.

The product of its digits is 746496, while the sum is 47.

The square root of 86394449 is about 9294.8614298439. The cubic root of 86394449 is about 442.0743120142.

The spelling of 86394449 in words is "eighty-six million, three hundred ninety-four thousand, four hundred forty-nine".