397770 has 16 divisors (see below), whose sum is σ = 954720. Its totient is φ = 106064.

The previous prime is 397763. The next prime is 397799. The reversal of 397770 is 77793.

397770 is nontrivially palindromic in base 9.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6600 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (59670).

2³⁹⁷⁷⁷⁰ is an apocalyptic number.

397770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397770 is an abundant number, since it is smaller than the sum of its proper divisors (556950).

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

397770 is a wasteful number, since it uses less digits than its factorization.

397770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269.

The product of its (nonzero) digits is 9261, while the sum is 33.

The square root of 397770 is about 630.6900982257. The cubic root of 397770 is about 73.5434515622.

The spelling of 397770 in words is "three hundred ninety-seven thousand, seven hundred seventy".