208683401 has 4 divisors (see below), whose sum is σ = 208712400. Its totient is φ = 208654404.

The previous prime is 208683361. The next prime is 208683451. The reversal of 208683401 is 104386802.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-208683401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208683451) 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, 5390 + ... + 21128.

It is an arithmetic number, because the mean of its divisors is an integer number (52178100).

Almost surely, 2^208683401 is an apocalyptic number.

It is an amenable number.

208683401 is a deficient number, since it is larger than the sum of its proper divisors (28999).

208683401 is a wasteful number, since it uses less digits than its factorization.

208683401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 208683401 is about 14445.8783395126. The cubic root of 208683401 is about 593.1474058335.

The spelling of 208683401 in words is "two hundred eight million, six hundred eighty-three thousand, four hundred one".