397948346 has 8 divisors (see below), whose sum is σ = 622875744. Its totient is φ = 190323100.

The previous prime is 397948339. The next prime is 397948351. The reversal of 397948346 is 643849793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325480 + ... + 4325571.

It is an arithmetic number, because the mean of its divisors is an integer number (77859468).

Almost surely, 2^397948346 is an apocalyptic number.

397948346 is a deficient number, since it is larger than the sum of its proper divisors (224927398).

397948346 is a wasteful number, since it uses less digits than its factorization.

397948346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651076.

The product of its digits is 3919104, while the sum is 53.

The square root of 397948346 is about 19948.6427107209. The cubic root of 397948346 is about 735.5444134743.

It can be divided in two parts, 3979 and 48346, that added together give a palindrome (52325).

The spelling of 397948346 in words is "three hundred ninety-seven million, nine hundred forty-eight thousand, three hundred forty-six".