86912447 has 4 divisors (see below), whose sum is σ = 88761696. Its totient is φ = 85063200.

The previous prime is 86912411. The next prime is 86912453. The reversal of 86912447 is 74421968.

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

It is a cyclic number.

It is not a de Polignac number, because 86912447 - 2⁶ = 86912383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86912407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924554 + ... + 924647.

It is an arithmetic number, because the mean of its divisors is an integer number (22190424).

Almost surely, 2^86912447 is an apocalyptic number.

86912447 is a deficient number, since it is larger than the sum of its proper divisors (1849249).

86912447 is a wasteful number, since it uses less digits than its factorization.

86912447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849248.

The product of its digits is 96768, while the sum is 41.

The square root of 86912447 is about 9322.6845382647. The cubic root of 86912447 is about 442.9560718535.

The spelling of 86912447 in words is "eighty-six million, nine hundred twelve thousand, four hundred forty-seven".