397503484 has 72 divisors (see below), whose sum is σ = 858105360. Its totient is φ = 160199424.

The previous prime is 397503451. The next prime is 397503497. The reversal of 397503484 is 484305793.

It is a self number, because there is not a number n which added to its sum of digits gives 397503484.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 643944 + ... + 644560.

It is an arithmetic number, because the mean of its divisors is an integer number (11918130).

Almost surely, 2^397503484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397503484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429052680).

397503484 is an abundant number, since it is smaller than the sum of its proper divisors (460601876).

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

397503484 is a wasteful number, since it uses less digits than its factorization.

397503484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 397503484 is about 19937.4894106555. The cubic root of 397503484 is about 735.2702256572.

It can be divided in two parts, 39750 and 3484, that added together give a palindrome (43234).

The spelling of 397503484 in words is "three hundred ninety-seven million, five hundred three thousand, four hundred eighty-four".