396966977 has 8 divisors (see below), whose sum is σ = 433581120. Its totient is φ = 360440560.

The previous prime is 396966929. The next prime is 396967001. The reversal of 396966977 is 779669693.

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 396966977 - 2¹⁰ = 396965953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396966917) 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, 12278 + ... + 30735.

It is an arithmetic number, because the mean of its divisors is an integer number (54197640).

Almost surely, 2^396966977 is an apocalyptic number.

It is an amenable number.

396966977 is a deficient number, since it is larger than the sum of its proper divisors (36614143).

396966977 is a wasteful number, since it uses less digits than its factorization.

396966977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43863.

The product of its digits is 23147208, while the sum is 62.

The square root of 396966977 is about 19924.0301395074. The cubic root of 396966977 is about 734.9392807755.

The spelling of 396966977 in words is "three hundred ninety-six million, nine hundred sixty-six thousand, nine hundred seventy-seven".