86741831 has 4 divisors (see below), whose sum is σ = 94627464. Its totient is φ = 78856200.

The previous prime is 86741827. The next prime is 86741833. The reversal of 86741831 is 13814768.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86741831 - 2² = 86741827 is a prime.

It is a super-2 number, since 2×86741831² = 15048290490465122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86741833) 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, 3942800 + ... + 3942821.

It is an arithmetic number, because the mean of its divisors is an integer number (23656866).

Almost surely, 2^86741831 is an apocalyptic number.

86741831 is a deficient number, since it is larger than the sum of its proper divisors (7885633).

86741831 is a wasteful number, since it uses less digits than its factorization.

86741831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7885632.

The product of its digits is 32256, while the sum is 38.

The square root of 86741831 is about 9313.5294598772. The cubic root of 86741831 is about 442.6660293902. Note that the first 3 decimals are identical.

The spelling of 86741831 in words is "eighty-six million, seven hundred forty-one thousand, eight hundred thirty-one".