208831094 has 16 divisors (see below), whose sum is σ = 336626928. Its totient is φ = 96805632.

The previous prime is 208831087. The next prime is 208831127. The reversal of 208831094 is 490138802.

It is a happy number.

It is a super-2 number, since 2×208831094² = 87220851642473672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43559 + ... + 48114.

It is an arithmetic number, because the mean of its divisors is an integer number (21039183).

Almost surely, 2^208831094 is an apocalyptic number.

208831094 is a deficient number, since it is larger than the sum of its proper divisors (127795834).

208831094 is a wasteful number, since it uses less digits than its factorization.

208831094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91759.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 208831094 is about 14450.9893778938. The cubic root of 208831094 is about 593.2873036575.

Adding to 208831094 its reverse (490138802), we get a palindrome (698969896).

The spelling of 208831094 in words is "two hundred eight million, eight hundred thirty-one thousand, ninety-four".