206028977 has 24 divisors (see below), whose sum is σ = 267859872. Its totient is φ = 156609600.

The previous prime is 206028973. The next prime is 206029013. The reversal of 206028977 is 779820602.

It is not a de Polignac number, because 206028977 - 2² = 206028973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (206028971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17438 + ... + 26760.

It is an arithmetic number, because the mean of its divisors is an integer number (11160828).

Almost surely, 2^206028977 is an apocalyptic number.

It is an amenable number.

206028977 is a deficient number, since it is larger than the sum of its proper divisors (61830895).

206028977 is a wasteful number, since it uses less digits than its factorization.

206028977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9389 (or 9382 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 206028977 is about 14353.7095205386. The cubic root of 206028977 is about 590.6217490447.

The spelling of 206028977 in words is "two hundred six million, twenty-eight thousand, nine hundred seventy-seven".