83621441 has 2 divisors, whose sum is σ = 83621442. Its totient is φ = 83621440.

The previous prime is 83621431. The next prime is 83621459. The reversal of 83621441 is 14412638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77880625 + 5740816 = 8825^2 + 2396^2 .

It is a cyclic number.

It is not a de Polignac number, because 83621441 - 2¹⁰ = 83620417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83621401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41810720 + 41810721.

It is an arithmetic number, because the mean of its divisors is an integer number (41810721).

Almost surely, 2^83621441 is an apocalyptic number.

It is an amenable number.

83621441 is a deficient number, since it is larger than the sum of its proper divisors (1).

83621441 is an equidigital number, since it uses as much as digits as its factorization.

83621441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 83621441 is about 9144.4759827997. The cubic root of 83621441 is about 437.2930238389.

The spelling of 83621441 in words is "eighty-three million, six hundred twenty-one thousand, four hundred forty-one".