578704397 has 8 divisors (see below), whose sum is σ = 580954680. Its totient is φ = 576459520.

The previous prime is 578704369. The next prime is 578704439. The reversal of 578704397 is 793407875.

It can be written as a sum of positive squares in 4 ways, for example, as 319301161 + 259403236 = 17869^2 + 16106^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 578704397 - 2⁶ = 578704333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578704307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420803 + ... + 422175.

It is an arithmetic number, because the mean of its divisors is an integer number (72619335).

Almost surely, 2^578704397 is an apocalyptic number.

It is an amenable number.

578704397 is a deficient number, since it is larger than the sum of its proper divisors (2250283).

578704397 is a wasteful number, since it uses less digits than its factorization.

578704397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 578704397 is about 24056.2756261230. The cubic root of 578704397 is about 833.3336661154. Note that the first 3 decimals are identical.

The spelling of 578704397 in words is "five hundred seventy-eight million, seven hundred four thousand, three hundred ninety-seven".