397814682 has 16 divisors (see below), whose sum is σ = 795906432. Its totient is φ = 132558720.

The previous prime is 397814657. The next prime is 397814687. The reversal of 397814682 is 286418793.

It is a super-2 number, since 2×397814682² = 316513042429522248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397814687) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10303 + ... + 30029.

It is an arithmetic number, because the mean of its divisors is an integer number (49744152).

Almost surely, 2^397814682 is an apocalyptic number.

397814682 is an abundant number, since it is smaller than the sum of its proper divisors (398091750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397814682 is a wasteful number, since it uses less digits than its factorization.

397814682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23093.

The product of its digits is 580608, while the sum is 48.

The square root of 397814682 is about 19945.2922264879. The cubic root of 397814682 is about 735.4620520162.

The spelling of 397814682 in words is "three hundred ninety-seven million, eight hundred fourteen thousand, six hundred eighty-two".