83162621 has 2 divisors, whose sum is σ = 83162622. Its totient is φ = 83162620.

The previous prime is 83162617. The next prime is 83162627. The reversal of 83162621 is 12626138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 1060900 = 9061^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 83162621 - 2² = 83162617 is a prime.

It is equal to p_4843172 and since 83162621 and 4843172 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83162627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41581310 + 41581311.

It is an arithmetic number, because the mean of its divisors is an integer number (41581311).

Almost surely, 2^83162621 is an apocalyptic number.

It is an amenable number.

83162621 is a deficient number, since it is larger than the sum of its proper divisors (1).

83162621 is an equidigital number, since it uses as much as digits as its factorization.

83162621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 83162621 is about 9119.3541986261. The cubic root of 83162621 is about 436.4917665491.

Adding to 83162621 its reverse (12626138), we get a palindrome (95788759).

The spelling of 83162621 in words is "eighty-three million, one hundred sixty-two thousand, six hundred twenty-one".