397556834 has 8 divisors (see below), whose sum is σ = 615571968. Its totient is φ = 192366180.

The previous prime is 397556821. The next prime is 397556839. The reversal of 397556834 is 438655793.

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

It is not an unprimeable number, because it can be changed into a prime (397556839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3206042 + ... + 3206165.

It is an arithmetic number, because the mean of its divisors is an integer number (76946496).

Almost surely, 2^397556834 is an apocalyptic number.

397556834 is a deficient number, since it is larger than the sum of its proper divisors (218015134).

397556834 is a wasteful number, since it uses less digits than its factorization.

397556834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412240.

The product of its digits is 2721600, while the sum is 50.

The square root of 397556834 is about 19938.8272975118. The cubic root of 397556834 is about 735.3031183767.

The spelling of 397556834 in words is "three hundred ninety-seven million, five hundred fifty-six thousand, eight hundred thirty-four".