83564357 has 2 divisors, whose sum is σ = 83564358. Its totient is φ = 83564356.

The previous prime is 83564353. The next prime is 83564387. The reversal of 83564357 is 75346538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74114881 + 9449476 = 8609^2 + 3074^2 .

It is a cyclic number.

It is not a de Polignac number, because 83564357 - 2² = 83564353 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 (83564353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41782178 + 41782179.

It is an arithmetic number, because the mean of its divisors is an integer number (41782179).

Almost surely, 2^83564357 is an apocalyptic number.

It is an amenable number.

83564357 is a deficient number, since it is larger than the sum of its proper divisors (1).

83564357 is an equidigital number, since it uses as much as digits as its factorization.

83564357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 41.

The square root of 83564357 is about 9141.3542213394. The cubic root of 83564357 is about 437.1934954683.

The spelling of 83564357 in words is "eighty-three million, five hundred sixty-four thousand, three hundred fifty-seven".