208687941 has 32 divisors (see below), whose sum is σ = 385459200. Its totient is φ = 108408240.

The previous prime is 208687931. The next prime is 208687949. The reversal of 208687941 is 149786802.

It is not a de Polignac number, because 208687941 - 2¹³ = 208679749 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208687949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48111 + ... + 52268.

It is an arithmetic number, because the mean of its divisors is an integer number (12045600).

Almost surely, 2^208687941 is an apocalyptic number.

208687941 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

208687941 is a deficient number, since it is larger than the sum of its proper divisors (176771259).

208687941 is a wasteful number, since it uses less digits than its factorization.

208687941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100406 (or 100400 counting only the distinct ones).

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

The square root of 208687941 is about 14446.0354769051. The cubic root of 208687941 is about 593.1517071973.

It can be divided in two parts, 208687 and 941, that added together give a triangular number (209628 = T₆₄₇).

The spelling of 208687941 in words is "two hundred eight million, six hundred eighty-seven thousand, nine hundred forty-one".