86447672 has 8 divisors (see below), whose sum is σ = 162089400. Its totient is φ = 43223832.

The previous prime is 86447657. The next prime is 86447677. The reversal of 86447672 is 27674468.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86447677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5402972 + ... + 5402987.

It is an arithmetic number, because the mean of its divisors is an integer number (20261175).

Almost surely, 2^86447672 is an apocalyptic number.

It is an amenable number.

86447672 is a deficient number, since it is larger than the sum of its proper divisors (75641728).

86447672 is a wasteful number, since it uses less digits than its factorization.

86447672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10805965 (or 10805961 counting only the distinct ones).

The product of its digits is 451584, while the sum is 44.

The square root of 86447672 is about 9297.7240225767. The cubic root of 86447672 is about 442.1650728269.

The spelling of 86447672 in words is "eighty-six million, four hundred forty-seven thousand, six hundred seventy-two".