396197427 has 8 divisors (see below), whose sum is σ = 559337616. Its totient is φ = 248594432.

The previous prime is 396197423. The next prime is 396197437. The reversal of 396197427 is 724791693.

It is a happy number.

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 396197427 - 2² = 396197423 is a prime.

It is a super-2 number, since 2×396197427² = 313944802322840658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (396197423) 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, 3884238 + ... + 3884339.

It is an arithmetic number, because the mean of its divisors is an integer number (69917202).

Almost surely, 2^396197427 is an apocalyptic number.

396197427 is a deficient number, since it is larger than the sum of its proper divisors (163140189).

396197427 is a wasteful number, since it uses less digits than its factorization.

396197427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768597.

The product of its digits is 571536, while the sum is 48.

The square root of 396197427 is about 19904.7086640322. The cubic root of 396197427 is about 734.4640620809.

The spelling of 396197427 in words is "three hundred ninety-six million, one hundred ninety-seven thousand, four hundred twenty-seven".