83743420 has 24 divisors (see below), whose sum is σ = 178844400. Its totient is φ = 32929152.

The previous prime is 83743417. The next prime is 83743421. The reversal of 83743420 is 2434738.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83743421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34305 + ... + 36664.

It is an arithmetic number, because the mean of its divisors is an integer number (7451850).

Almost surely, 2^83743420 is an apocalyptic number.

It is an amenable number.

83743420 is an abundant number, since it is smaller than the sum of its proper divisors (95100980).

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

83743420 is a wasteful number, since it uses less digits than its factorization.

83743420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71037 (or 71035 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 83743420 is about 9151.1430979960. The cubic root of 83743420 is about 437.5055476848.

The spelling of 83743420 in words is "eighty-three million, seven hundred forty-three thousand, four hundred twenty".