86616651 has 16 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 52372320.

The previous prime is 86616631. The next prime is 86616653. The reversal of 86616651 is 15661668.

It is not a de Polignac number, because 86616651 - 2²³ = 78228043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86616653) 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, 12445 + ... + 18113.

It is an arithmetic number, because the mean of its divisors is an integer number (7892640).

Almost surely, 2^86616651 is an apocalyptic number.

86616651 is a deficient number, since it is larger than the sum of its proper divisors (39665589).

86616651 is a wasteful number, since it uses less digits than its factorization.

86616651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146.

The product of its digits is 51840, while the sum is 39.

The square root of 86616651 is about 9306.8067026236. The cubic root of 86616651 is about 442.4529848865.

The spelling of 86616651 in words is "eighty-six million, six hundred sixteen thousand, six hundred fifty-one".