397085706 has 16 divisors (see below), whose sum is σ = 882412800. Its totient is φ = 132361884.

The previous prime is 397085701. The next prime is 397085713. The reversal of 397085706 is 607580793.

It is a happy number.

397085706 is a `hidden beast` number, since 3 + 9 + 70 + 8 + 570 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (397085701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3676666 + ... + 3676773.

It is an arithmetic number, because the mean of its divisors is an integer number (55150800).

Almost surely, 2^397085706 is an apocalyptic number.

397085706 is an abundant number, since it is smaller than the sum of its proper divisors (485327094).

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

397085706 is a wasteful number, since it uses less digits than its factorization.

397085706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353450 (or 7353444 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 397085706 is about 19927.0094595250. The cubic root of 397085706 is about 735.0125445589.

It can be divided in two parts, 3970 and 85706, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 397085706 in words is "three hundred ninety-seven million, eighty-five thousand, seven hundred six".