83742229 has 2 divisors, whose sum is σ = 83742230. Its totient is φ = 83742228.

The previous prime is 83742179. The next prime is 83742251. The reversal of 83742229 is 92224738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72284004 + 11458225 = 8502^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 83742229 - 2⁹ = 83741717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83742259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41871114 + 41871115.

It is an arithmetic number, because the mean of its divisors is an integer number (41871115).

Almost surely, 2^83742229 is an apocalyptic number.

It is an amenable number.

83742229 is a deficient number, since it is larger than the sum of its proper divisors (1).

83742229 is an equidigital number, since it uses as much as digits as its factorization.

83742229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 83742229 is about 9151.0780239270. The cubic root of 83742229 is about 437.5034736051.

The spelling of 83742229 in words is "eighty-three million, seven hundred forty-two thousand, two hundred twenty-nine".