86359640 has 32 divisors (see below), whose sum is σ = 196776000. Its totient is φ = 34105344.

The previous prime is 86359621. The next prime is 86359661. The reversal of 86359640 is 4695368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10505 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (6149250).

Almost surely, 2^86359640 is an apocalyptic number.

It is an amenable number.

86359640 is an abundant number, since it is smaller than the sum of its proper divisors (110416360).

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

86359640 is a wasteful number, since it uses less digits than its factorization.

86359640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27419 (or 27415 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 86359640 is about 9292.9887549701. The cubic root of 86359640 is about 442.0149323047.

The spelling of 86359640 in words is "eighty-six million, three hundred fifty-nine thousand, six hundred forty".