86836842 has 24 divisors (see below), whose sum is σ = 188759844. Its totient is φ = 28851264.

The previous prime is 86836837. The next prime is 86836847. The reversal of 86836842 is 24863868.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86836837) and next prime (86836847).

It can be written as a sum of positive squares in 2 ways, for example, as 84989961 + 1846881 = 9219^2 + 1359^2 .

It is not an unprimeable number, because it can be changed into a prime (86836847) 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, 2073 + ... + 13340.

Almost surely, 2^86836842 is an apocalyptic number.

86836842 is an abundant number, since it is smaller than the sum of its proper divisors (101923002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86836842 is a wasteful number, since it uses less digits than its factorization.

86836842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15734 (or 15731 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 86836842 is about 9318.6287617868. The cubic root of 86836842 is about 442.8275923298.

It can be divided in two parts, 86836 and 842, that added together give a palindrome (87678).

The spelling of 86836842 in words is "eighty-six million, eight hundred thirty-six thousand, eight hundred forty-two".