395097661 has 8 divisors (see below), whose sum is σ = 451661184. Its totient is φ = 338564400.

The previous prime is 395097649. The next prime is 395097673. The reversal of 395097661 is 166790593.

It is an interprime number because it is at equal distance from previous prime (395097649) and next prime (395097673).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 395097661 - 2¹⁹ = 394573373 is a prime.

It is a super-2 number, since 2×395097661² = 312204323455341842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395097161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42696 + ... + 51118.

It is an arithmetic number, because the mean of its divisors is an integer number (56457648).

Almost surely, 2^395097661 is an apocalyptic number.

It is an amenable number.

395097661 is a deficient number, since it is larger than the sum of its proper divisors (56563523).

395097661 is an equidigital number, since it uses as much as digits as its factorization.

395097661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15131.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 395097661 is about 19877.0636916019. The cubic root of 395097661 is about 733.7838564749.

The spelling of 395097661 in words is "three hundred ninety-five million, ninety-seven thousand, six hundred sixty-one".