83568949 has 2 divisors, whose sum is σ = 83568950. Its totient is φ = 83568948.

The previous prime is 83568943. The next prime is 83568983. The reversal of 83568949 is 94986538.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76440049 + 7128900 = 8743^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 83568949 - 2³ = 83568941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83568896 and 83568905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83568941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41784474 + 41784475.

It is an arithmetic number, because the mean of its divisors is an integer number (41784475).

Almost surely, 2^83568949 is an apocalyptic number.

It is an amenable number.

83568949 is a deficient number, since it is larger than the sum of its proper divisors (1).

83568949 is an equidigital number, since it uses as much as digits as its factorization.

83568949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 52.

The square root of 83568949 is about 9141.6053841762. The cubic root of 83568949 is about 437.2015034908.

The spelling of 83568949 in words is "eighty-three million, five hundred sixty-eight thousand, nine hundred forty-nine".