42983983 has 4 divisors (see below), whose sum is σ = 49124560. Its totient is φ = 36843408.

The previous prime is 42983981. The next prime is 42983989. The reversal of 42983983 is 38938924.

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

It is not a de Polignac number, because 42983983 - 2¹ = 42983981 is a prime.

It is a super-3 number, since 3×42983983³ (a number of 24 digits) contains 333 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 (42983981) 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, 3070278 + ... + 3070291.

It is an arithmetic number, because the mean of its divisors is an integer number (12281140).

Almost surely, 2^42983983 is an apocalyptic number.

42983983 is a deficient number, since it is larger than the sum of its proper divisors (6140577).

42983983 is an equidigital number, since it uses as much as digits as its factorization.

42983983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140576.

The product of its digits is 373248, while the sum is 46.

The square root of 42983983 is about 6556.2171257517. The cubic root of 42983983 is about 350.2963014686.

It can be divided in two parts, 4298 and 3983, that added together give a square (8281 = 91²).

The spelling of 42983983 in words is "forty-two million, nine hundred eighty-three thousand, nine hundred eighty-three".