86440487 has 8 divisors (see below), whose sum is σ = 100464000. Its totient is φ = 72835704.

The previous prime is 86440469. The next prime is 86440489. The reversal of 86440487 is 78404468.

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

It is a cyclic number.

It is not a de Polignac number, because 86440487 - 2¹² = 86436391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86440489) 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, 104237 + ... + 105062.

It is an arithmetic number, because the mean of its divisors is an integer number (12558000).

Almost surely, 2^86440487 is an apocalyptic number.

86440487 is a deficient number, since it is larger than the sum of its proper divisors (14023513).

86440487 is a wasteful number, since it uses less digits than its factorization.

86440487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209365.

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 86440487 is about 9297.3376296658. The cubic root of 86440487 is about 442.1528224717.

The spelling of 86440487 in words is "eighty-six million, four hundred forty thousand, four hundred eighty-seven".