206379049 has 2 divisors, whose sum is σ = 206379050. Its totient is φ = 206379048.

The previous prime is 206379029. The next prime is 206379053. The reversal of 206379049 is 940973602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163712025 + 42667024 = 12795^2 + 6532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206379049 is a prime.

It is a super-2 number, since 2×206379049² = 85184623732288802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206379029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103189524 + 103189525.

It is an arithmetic number, because the mean of its divisors is an integer number (103189525).

Almost surely, 2^206379049 is an apocalyptic number.

It is an amenable number.

206379049 is a deficient number, since it is larger than the sum of its proper divisors (1).

206379049 is an equidigital number, since it uses as much as digits as its factorization.

206379049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 206379049 is about 14365.8988232550. The cubic root of 206379049 is about 590.9560760337.

The spelling of 206379049 in words is "two hundred six million, three hundred seventy-nine thousand, forty-nine".