83744641 has 2 divisors, whose sum is σ = 83744642. Its totient is φ = 83744640.

The previous prime is 83744623. The next prime is 83744677. The reversal of 83744641 is 14644738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53714241 + 30030400 = 7329^2 + 5480^2 .

It is a cyclic number.

It is not a de Polignac number, because 83744641 - 2¹⁹ = 83220353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83744641.

It is not a weakly prime, because it can be changed into another prime (83744621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41872320 + 41872321.

It is an arithmetic number, because the mean of its divisors is an integer number (41872321).

Almost surely, 2^83744641 is an apocalyptic number.

It is an amenable number.

83744641 is a deficient number, since it is larger than the sum of its proper divisors (1).

83744641 is an equidigital number, since it uses as much as digits as its factorization.

83744641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 83744641 is about 9151.2098107299. The cubic root of 83744641 is about 437.5076739878.

The spelling of 83744641 in words is "eighty-three million, seven hundred forty-four thousand, six hundred forty-one".