86639448 has 48 divisors (see below), whose sum is σ = 251965080. Its totient is φ = 24753792.

The previous prime is 86639369. The next prime is 86639461. The reversal of 86639448 is 84493668.

It is a junction number, because it is equal to n+sod(n) for n = 86639397 and 86639406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35661 + ... + 38012.

Almost surely, 2^86639448 is an apocalyptic number.

It is an amenable number.

86639448 is an abundant number, since it is smaller than the sum of its proper divisors (165325632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86639448 is a wasteful number, since it uses less digits than its factorization.

86639448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73696 (or 73685 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 86639448 is about 9308.0313708109. The cubic root of 86639448 is about 442.4917985010.

The spelling of 86639448 in words is "eighty-six million, six hundred thirty-nine thousand, four hundred forty-eight".