86838434 has 8 divisors (see below), whose sum is σ = 130308588. Its totient is φ = 43402240.

The previous prime is 86838421. The next prime is 86838473. The reversal of 86838434 is 43483868.

It can be written as a sum of positive squares in 2 ways, for example, as 80156209 + 6682225 = 8953^2 + 2585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647 + ... + 13194.

Almost surely, 2^86838434 is an apocalyptic number.

86838434 is a deficient number, since it is larger than the sum of its proper divisors (43470154).

86838434 is a wasteful number, since it uses less digits than its factorization.

86838434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16980.

The product of its digits is 442368, while the sum is 44.

The square root of 86838434 is about 9318.7141816884. The cubic root of 86838434 is about 442.8302984670.

The spelling of 86838434 in words is "eighty-six million, eight hundred thirty-eight thousand, four hundred thirty-four".