396973897 has 8 divisors (see below), whose sum is σ = 418301600. Its totient is φ = 375689664.

The previous prime is 396973883. The next prime is 396973901. The reversal of 396973897 is 798379693.

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 396973897 - 2¹¹ = 396971849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396973097) 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, 8818 + ... + 29524.

It is an arithmetic number, because the mean of its divisors is an integer number (52287700).

Almost surely, 2^396973897 is an apocalyptic number.

It is an amenable number.

396973897 is a deficient number, since it is larger than the sum of its proper divisors (21327703).

396973897 is a wasteful number, since it uses less digits than its factorization.

396973897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21735.

The product of its digits is 15431472, while the sum is 61.

The square root of 396973897 is about 19924.2037983956. The cubic root of 396973897 is about 734.9435512821.

The spelling of 396973897 in words is "three hundred ninety-six million, nine hundred seventy-three thousand, eight hundred ninety-seven".