206739401 has 4 divisors (see below), whose sum is σ = 225533904. Its totient is φ = 187944900.

The previous prime is 206739389. The next prime is 206739443. The reversal of 206739401 is 104937602.

206739401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 206739401 - 2¹⁴ = 206723017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206739901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9397235 + ... + 9397256.

It is an arithmetic number, because the mean of its divisors is an integer number (56383476).

Almost surely, 2^206739401 is an apocalyptic number.

It is an amenable number.

206739401 is a deficient number, since it is larger than the sum of its proper divisors (18794503).

206739401 is a wasteful number, since it uses less digits than its factorization.

206739401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18794502.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 206739401 is about 14378.4352764826. The cubic root of 206739401 is about 591.2998260122.

The spelling of 206739401 in words is "two hundred six million, seven hundred thirty-nine thousand, four hundred one".