86938481 has 16 divisors (see below), whose sum is σ = 102076800. Its totient is φ = 72506880.

The previous prime is 86938469. The next prime is 86938487. The reversal of 86938481 is 18483968.

It is a cyclic number.

It is not a de Polignac number, because 86938481 - 2¹⁴ = 86922097 is a prime.

It is a super-2 number, since 2×86938481² = 15116598957174722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86938487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40370 + ... + 42468.

It is an arithmetic number, because the mean of its divisors is an integer number (6379800).

Almost surely, 2^86938481 is an apocalyptic number.

It is an amenable number.

86938481 is a deficient number, since it is larger than the sum of its proper divisors (15138319).

86938481 is a wasteful number, since it uses less digits than its factorization.

86938481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264.

The product of its digits is 331776, while the sum is 47.

The square root of 86938481 is about 9324.0807053564. The cubic root of 86938481 is about 443.0002955427. Note that the first 3 decimals are identical.

The spelling of 86938481 in words is "eighty-six million, nine hundred thirty-eight thousand, four hundred eighty-one".