86561654 has 16 divisors (see below), whose sum is σ = 137684448. Its totient is φ = 40674432.

The previous prime is 86561653. The next prime is 86561659. The reversal of 86561654 is 45616568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86561653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28367 + ... + 31269.

It is an arithmetic number, because the mean of its divisors is an integer number (8605278).

Almost surely, 2^86561654 is an apocalyptic number.

86561654 is a deficient number, since it is larger than the sum of its proper divisors (51122794).

86561654 is a wasteful number, since it uses less digits than its factorization.

86561654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799.

The product of its digits is 172800, while the sum is 41.

The square root of 86561654 is about 9303.8515680335. The cubic root of 86561654 is about 442.3593202984.

The spelling of 86561654 in words is "eighty-six million, five hundred sixty-one thousand, six hundred fifty-four".