86738681 has 8 divisors (see below), whose sum is σ = 93631680. Its totient is φ = 80105872.

The previous prime is 86738671. The next prime is 86738689. The reversal of 86738681 is 18683768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-86738681 is a prime.

It is a super-2 number, since 2×86738681² = 15047197563239522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86738689) 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, 64355 + ... + 65688.

It is an arithmetic number, because the mean of its divisors is an integer number (11703960).

Almost surely, 2^86738681 is an apocalyptic number.

It is an amenable number.

86738681 is a deficient number, since it is larger than the sum of its proper divisors (6892999).

86738681 is a wasteful number, since it uses less digits than its factorization.

86738681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130095.

The product of its digits is 387072, while the sum is 47.

The square root of 86738681 is about 9313.3603495194. The cubic root of 86738681 is about 442.6606709034.

The spelling of 86738681 in words is "eighty-six million, seven hundred thirty-eight thousand, six hundred eighty-one".