396943867 has 8 divisors (see below), whose sum is σ = 415941120. Its totient is φ = 378091560.

The previous prime is 396943853. The next prime is 396943873. The reversal of 396943867 is 768349693.

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 396943867 - 2⁷ = 396943739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396943367) 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, 30609 + ... + 41602.

It is an arithmetic number, because the mean of its divisors is an integer number (51992640).

Almost surely, 2^396943867 is an apocalyptic number.

396943867 is a deficient number, since it is larger than the sum of its proper divisors (18997253).

396943867 is a wasteful number, since it uses less digits than its factorization.

396943867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72473.

The product of its digits is 5878656, while the sum is 55.

The square root of 396943867 is about 19923.4501781193. The cubic root of 396943867 is about 734.9250186518.

The spelling of 396943867 in words is "three hundred ninety-six million, nine hundred forty-three thousand, eight hundred sixty-seven".