396341391 has 8 divisors (see below), whose sum is σ = 528740784. Its totient is φ = 264084800.

The previous prime is 396341369. The next prime is 396341399. The reversal of 396341391 is 193143693.

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 396341391 - 2¹³ = 396333199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396341399) 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, 29046 + ... + 40451.

It is an arithmetic number, because the mean of its divisors is an integer number (66092598).

Almost surely, 2^396341391 is an apocalyptic number.

396341391 is a deficient number, since it is larger than the sum of its proper divisors (132399393).

396341391 is a wasteful number, since it uses less digits than its factorization.

396341391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71401.

The product of its digits is 52488, while the sum is 39.

The square root of 396341391 is about 19908.3246658276. The cubic root of 396341391 is about 734.5530106477.

It can be divided in two parts, 3963 and 41391, that added together give a palindrome (45354).

The spelling of 396341391 in words is "three hundred ninety-six million, three hundred forty-one thousand, three hundred ninety-one".