86938841 has 4 divisors (see below), whose sum is σ = 94842384. Its totient is φ = 79035300.

The previous prime is 86938811. The next prime is 86938853. The reversal of 86938841 is 14883968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86938841 - 2¹⁴ = 86922457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86938811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3951755 + ... + 3951776.

It is an arithmetic number, because the mean of its divisors is an integer number (23710596).

Almost surely, 2^86938841 is an apocalyptic number.

It is an amenable number.

86938841 is a deficient number, since it is larger than the sum of its proper divisors (7903543).

86938841 is a wasteful number, since it uses less digits than its factorization.

86938841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7903542.

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

The square root of 86938841 is about 9324.1000101887. The cubic root of 86938841 is about 443.0009070091. Note that the first 3 decimals are identical.

The spelling of 86938841 in words is "eighty-six million, nine hundred thirty-eight thousand, eight hundred forty-one".