206242077 has 8 divisors (see below), whose sum is σ = 277089120. Its totient is φ = 136444880.

The previous prime is 206242067. The next prime is 206242087. The reversal of 206242077 is 770242602.

It is an interprime number because it is at equal distance from previous prime (206242067) and next prime (206242087).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206242077 - 2⁷ = 206241949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206242067) 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 in 7 ways as a sum of consecutive naturals, for example, 262002 + ... + 262787.

It is an arithmetic number, because the mean of its divisors is an integer number (34636140).

Almost surely, 2^206242077 is an apocalyptic number.

It is an amenable number.

206242077 is a deficient number, since it is larger than the sum of its proper divisors (70847043).

206242077 is a wasteful number, since it uses less digits than its factorization.

206242077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524923.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 206242077 is about 14361.1307702423. The cubic root of 206242077 is about 590.8253096114.

Adding to 206242077 its reverse (770242602), we get a palindrome (976484679).

The spelling of 206242077 in words is "two hundred six million, two hundred forty-two thousand, seventy-seven".