86890449 has 8 divisors (see below), whose sum is σ = 115897600. Its totient is φ = 57905136.

The previous prime is 86890423. The next prime is 86890457. The reversal of 86890449 is 94409868.

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

It is not a de Polignac number, because 86890449 - 2⁹ = 86889937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86890398 and 86890407.

It is not an unprimeable number, because it can be changed into a prime (86890049) 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, 10464 + ... + 16830.

It is an arithmetic number, because the mean of its divisors is an integer number (14487200).

Almost surely, 2^86890449 is an apocalyptic number.

It is an amenable number.

86890449 is a deficient number, since it is larger than the sum of its proper divisors (29007151).

86890449 is a wasteful number, since it uses less digits than its factorization.

86890449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10919.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 86890449 is about 9321.5046532199. The cubic root of 86890449 is about 442.9186971919.

The spelling of 86890449 in words is "eighty-six million, eight hundred ninety thousand, four hundred forty-nine".