396447901 has 8 divisors (see below), whose sum is σ = 427492800. Its totient is φ = 366420960.

The previous prime is 396447881. The next prime is 396447907. The reversal of 396447901 is 109744693.

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 396447901 - 2¹³ = 396439709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396447907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253681 + ... + 255238.

It is an arithmetic number, because the mean of its divisors is an integer number (53436600).

Almost surely, 2^396447901 is an apocalyptic number.

It is an amenable number.

396447901 is a deficient number, since it is larger than the sum of its proper divisors (31044899).

396447901 is a wasteful number, since it uses less digits than its factorization.

396447901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508979.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 396447901 is about 19910.9994977650. Note that the first 3 decimals coincide. The cubic root of 396447901 is about 734.6188042923.

The spelling of 396447901 in words is "three hundred ninety-six million, four hundred forty-seven thousand, nine hundred one".