206874819 has 12 divisors (see below), whose sum is σ = 316397016. Its totient is φ = 129803712.

The previous prime is 206874803. The next prime is 206874821. The reversal of 206874819 is 918478602.

It is not a de Polignac number, because 206874819 - 2⁴ = 206874803 is a prime.

It is a super-2 number, since 2×206874819² = 85594381472565522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206874839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675909 + ... + 676214.

It is an arithmetic number, because the mean of its divisors is an integer number (26366418).

Almost surely, 2^206874819 is an apocalyptic number.

206874819 is a deficient number, since it is larger than the sum of its proper divisors (109522197).

206874819 is a wasteful number, since it uses less digits than its factorization.

206874819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352146 (or 1352143 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 206874819 is about 14383.1435715563. The cubic root of 206874819 is about 591.4289018162.

The spelling of 206874819 in words is "two hundred six million, eight hundred seventy-four thousand, eight hundred nineteen".