206992651 has 2 divisors, whose sum is σ = 206992652. Its totient is φ = 206992650.

The previous prime is 206992637. The next prime is 206992657. The reversal of 206992651 is 156299602.

206992651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206992651 - 2⁷ = 206992523 is a prime.

It is not a weakly prime, because it can be changed into another prime (206992657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103496325 + 103496326.

It is an arithmetic number, because the mean of its divisors is an integer number (103496326).

Almost surely, 2^206992651 is an apocalyptic number.

206992651 is a deficient number, since it is larger than the sum of its proper divisors (1).

206992651 is an equidigital number, since it uses as much as digits as its factorization.

206992651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 206992651 is about 14387.2391722665. The cubic root of 206992651 is about 591.5411694243.

The spelling of 206992651 in words is "two hundred six million, nine hundred ninety-two thousand, six hundred fifty-one".