397876 has 6 divisors (see below), whose sum is σ = 696290. Its totient is φ = 198936.

The previous prime is 397867. The next prime is 397897. The reversal of 397876 is 678793.

397876 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 291600 + 106276 = 540^2 + 326^2 .

It is a super-2 number, since 2×397876² = 316610622752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49731 + ... + 49738.

2³⁹⁷⁸⁷⁶ is an apocalyptic number.

It is an amenable number.

397876 is a deficient number, since it is larger than the sum of its proper divisors (298414).

397876 is a wasteful number, since it uses less digits than its factorization.

397876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99473 (or 99471 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 397876 is about 630.7741275607. The cubic root of 397876 is about 73.5499837403.

It can be divided in two parts, 39787 and 6, that added together give a palindrome (39793).

The spelling of 397876 in words is "three hundred ninety-seven thousand, eight hundred seventy-six".