86435749 has 8 divisors (see below), whose sum is σ = 88666200. Its totient is φ = 84211200.

The previous prime is 86435743. The next prime is 86435753. The reversal of 86435749 is 94753468.

It can be written as a sum of positive squares in 4 ways, for example, as 1979649 + 84456100 = 1407^2 + 9190^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 86435749 - 2¹³ = 86427557 is a prime.

It is a super-2 number, since 2×86435749² = 14942277410382002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86435699 and 86435708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86435743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55027 + ... + 56575.

It is an arithmetic number, because the mean of its divisors is an integer number (11083275).

Almost surely, 2^86435749 is an apocalyptic number.

It is an amenable number.

86435749 is a deficient number, since it is larger than the sum of its proper divisors (2230451).

86435749 is a wasteful number, since it uses less digits than its factorization.

86435749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951.

The product of its digits is 725760, while the sum is 46.

The square root of 86435749 is about 9297.0828220469. The cubic root of 86435749 is about 442.1447438563.

The spelling of 86435749 in words is "eighty-six million, four hundred thirty-five thousand, seven hundred forty-nine".