83465861 has 2 divisors, whose sum is σ = 83465862. Its totient is φ = 83465860.

The previous prime is 83465839. The next prime is 83465867. The reversal of 83465861 is 16856438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 12737761 = 8410^2 + 3569^2 .

It is a cyclic number.

It is not a de Polignac number, because 83465861 - 2¹⁰ = 83464837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83465867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41732930 + 41732931.

It is an arithmetic number, because the mean of its divisors is an integer number (41732931).

Almost surely, 2^83465861 is an apocalyptic number.

It is an amenable number.

83465861 is a deficient number, since it is larger than the sum of its proper divisors (1).

83465861 is an equidigital number, since it uses as much as digits as its factorization.

83465861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 41.

The square root of 83465861 is about 9135.9652473069. The cubic root of 83465861 is about 437.0216568921.

The spelling of 83465861 in words is "eighty-three million, four hundred sixty-five thousand, eight hundred sixty-one".