86117481 has 12 divisors (see below), whose sum is σ = 130939120. Its totient is φ = 54389880.

The previous prime is 86117467. The next prime is 86117503. The reversal of 86117481 is 18471168.

It is not a de Polignac number, because 86117481 - 2⁶ = 86117417 is a prime.

It is a super-2 number, since 2×86117481² = 14832441067570722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86117401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251635 + ... + 251976.

Almost surely, 2^86117481 is an apocalyptic number.

It is an amenable number.

86117481 is a deficient number, since it is larger than the sum of its proper divisors (44821639).

86117481 is a wasteful number, since it uses less digits than its factorization.

86117481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503636 (or 503633 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 86117481 is about 9279.9504847817. The cubic root of 86117481 is about 441.6013977045.

The spelling of 86117481 in words is "eighty-six million, one hundred seventeen thousand, four hundred eighty-one".