86461656 has 64 divisors (see below), whose sum is σ = 222743520. Its totient is φ = 27955200.

The previous prime is 86461619. The next prime is 86461657. The reversal of 86461656 is 65616468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86461657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128136 + ... + 128808.

Almost surely, 2^86461656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86461656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111371760).

86461656 is an abundant number, since it is smaller than the sum of its proper divisors (136281864).

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

86461656 is a wasteful number, since it uses less digits than its factorization.

86461656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 832 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 86461656 is about 9298.4760041633. The cubic root of 86461656 is about 442.1889134651.

The spelling of 86461656 in words is "eighty-six million, four hundred sixty-one thousand, six hundred fifty-six".