43086021 has 8 divisors (see below), whose sum is σ = 62670624. Its totient is φ = 26112720.

The previous prime is 43085983. The next prime is 43086023. The reversal of 43086021 is 12068034.

It is a happy number.

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

It is not a de Polignac number, because 43086021 - 2¹⁰ = 43084997 is a prime.

It is a super-2 number, since 2×43086021² = 3712810411224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43085982 and 43086000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43086023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 652786 + ... + 652851.

It is an arithmetic number, because the mean of its divisors is an integer number (7833828).

Almost surely, 2^43086021 is an apocalyptic number.

It is an amenable number.

43086021 is a deficient number, since it is larger than the sum of its proper divisors (19584603).

43086021 is a wasteful number, since it uses less digits than its factorization.

43086021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305651.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 43086021 is about 6563.9942870176. The cubic root of 43086021 is about 350.5732673317.

The spelling of 43086021 in words is "forty-three million, eighty-six thousand, twenty-one".