397048784 has 20 divisors (see below), whose sum is σ = 839217120. Its totient is φ = 180476640.

The previous prime is 397048783. The next prime is 397048801. The reversal of 397048784 is 487840793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397048783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1127804 + ... + 1128155.

It is an arithmetic number, because the mean of its divisors is an integer number (41960856).

Almost surely, 2^397048784 is an apocalyptic number.

It is an amenable number.

397048784 is an abundant number, since it is smaller than the sum of its proper divisors (442168336).

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

397048784 is a wasteful number, since it uses less digits than its factorization.

397048784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255978 (or 2255972 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 397048784 is about 19926.0830069535. The cubic root of 397048784 is about 734.9897627648.

The spelling of 397048784 in words is "three hundred ninety-seven million, forty-eight thousand, seven hundred eighty-four".