83579261 has 2 divisors, whose sum is σ = 83579262. Its totient is φ = 83579260.

The previous prime is 83579231. The next prime is 83579297. The reversal of 83579261 is 16297538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78765625 + 4813636 = 8875^2 + 2194^2 .

It is a cyclic number.

It is not a de Polignac number, because 83579261 - 2¹⁴ = 83562877 is a prime.

It is a super-2 number, since 2×83579261² = 13970985738612242, which contains 22 as substring.

It is equal to p_4865954 and since 83579261 and 4865954 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 (83579231) 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 as a sum of consecutive naturals, namely, 41789630 + 41789631.

It is an arithmetic number, because the mean of its divisors is an integer number (41789631).

Almost surely, 2^83579261 is an apocalyptic number.

It is an amenable number.

83579261 is a deficient number, since it is larger than the sum of its proper divisors (1).

83579261 is an equidigital number, since it uses as much as digits as its factorization.

83579261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 83579261 is about 9142.1693814980. The cubic root of 83579261 is about 437.2194855944.

The spelling of 83579261 in words is "eighty-three million, five hundred seventy-nine thousand, two hundred sixty-one".