397803000 has 256 divisors, whose sum is σ = 1494604800. Its totient is φ = 86054400.

The previous prime is 397802959. The next prime is 397803023. The reversal of 397803000 is 308793.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 398502 + ... + 399498.

It is an arithmetic number, because the mean of its divisors is an integer number (5838300).

Almost surely, 2^397803000 is an apocalyptic number.

397803000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397803000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747302400).

397803000 is an abundant number, since it is smaller than the sum of its proper divisors (1096801800).

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

397803000 is a wasteful number, since it uses less digits than its factorization.

397803000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 397803000 is about 19944.9993732765. Note that the first 3 decimals coincide. The cubic root of 397803000 is about 735.4548528921.

The spelling of 397803000 in words is "three hundred ninety-seven million, eight hundred three thousand".