194395969 has 16 divisors (see below), whose sum is σ = 208681920. Its totient is φ = 180449280.

The previous prime is 194395963. The next prime is 194396017. The reversal of 194395969 is 969593491.

It is a cyclic number.

It is not a de Polignac number, because 194395969 - 2⁷ = 194395841 is a prime.

It is a super-2 number, since 2×194395969² = 75579585526897922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194395963) 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, 587134 + ... + 587464.

It is an arithmetic number, because the mean of its divisors is an integer number (13042620).

Almost surely, 2^194395969 is an apocalyptic number.

It is an amenable number.

194395969 is a deficient number, since it is larger than the sum of its proper divisors (14285951).

194395969 is a wasteful number, since it uses less digits than its factorization.

194395969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its digits is 2361960, while the sum is 55.

The square root of 194395969 is about 13942.5954900800. The cubic root of 194395969 is about 579.2896267360.

It can be divided in two parts, 194395 and 969, that added together give a square (195364 = 442²).

The spelling of 194395969 in words is "one hundred ninety-four million, three hundred ninety-five thousand, nine hundred sixty-nine".