396161901 has 8 divisors (see below), whose sum is σ = 586906560. Its totient is φ = 264107916.

The previous prime is 396161893. The next prime is 396161911. The reversal of 396161901 is 109161693.

396161901 is a `hidden beast` number, since 39 + 6 + 1 + 619 + 0 + 1 = 666.

It is not a de Polignac number, because 396161901 - 2³ = 396161893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396161911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7336305 + ... + 7336358.

It is an arithmetic number, because the mean of its divisors is an integer number (73363320).

Almost surely, 2^396161901 is an apocalyptic number.

It is an amenable number.

396161901 is a deficient number, since it is larger than the sum of its proper divisors (190744659).

396161901 is a wasteful number, since it uses less digits than its factorization.

396161901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14672672 (or 14672666 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 396161901 is about 19903.8162421180. The cubic root of 396161901 is about 734.4421089262.

The spelling of 396161901 in words is "three hundred ninety-six million, one hundred sixty-one thousand, nine hundred one".