208839433 has 16 divisors (see below), whose sum is σ = 239443776. Its totient is φ = 180411840.

The previous prime is 208839427. The next prime is 208839437. The reversal of 208839433 is 334938802.

It is a cyclic number.

It is not a de Polignac number, because 208839433 - 2²¹ = 206742281 is a prime.

It is a super-2 number, since 2×208839433² = 87227817551522978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (208839437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11535 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (14965236).

Almost surely, 2^208839433 is an apocalyptic number.

It is an amenable number.

208839433 is a deficient number, since it is larger than the sum of its proper divisors (30604343).

208839433 is a wasteful number, since it uses less digits than its factorization.

208839433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 208839433 is about 14451.2779019712. The cubic root of 208839433 is about 593.2952005610.

The spelling of 208839433 in words is "two hundred eight million, eight hundred thirty-nine thousand, four hundred thirty-three".