86939241 has 32 divisors (see below), whose sum is σ = 129247488. Its totient is φ = 51701760.

The previous prime is 86939227. The next prime is 86939243. The reversal of 86939241 is 14293968.

It is a de Polignac number, because none of the positive numbers 2^k-86939241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86939193 and 86939202.

It is not an unprimeable number, because it can be changed into a prime (86939243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160431 + ... + 160971.

It is an arithmetic number, because the mean of its divisors is an integer number (4038984).

Almost surely, 2^86939241 is an apocalyptic number.

It is an amenable number.

86939241 is a deficient number, since it is larger than the sum of its proper divisors (42308247).

86939241 is a wasteful number, since it uses less digits than its factorization.

86939241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its digits is 93312, while the sum is 42.

The square root of 86939241 is about 9324.1214599554. The cubic root of 86939241 is about 443.0015864143.

The spelling of 86939241 in words is "eighty-six million, nine hundred thirty-nine thousand, two hundred forty-one".