864400603 has 8 divisors (see below), whose sum is σ = 944732016. Its totient is φ = 784360800.

The previous prime is 864400601. The next prime is 864400609. The reversal of 864400603 is 306004468.

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 864400603 - 2¹ = 864400601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (864400601) 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 7 ways as a sum of consecutive naturals, for example, 66676 + ... + 78577.

It is an arithmetic number, because the mean of its divisors is an integer number (118091502).

Almost surely, 2^864400603 is an apocalyptic number.

864400603 is a deficient number, since it is larger than the sum of its proper divisors (80331413).

864400603 is a wasteful number, since it uses less digits than its factorization.

864400603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145805.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 864400603 is about 29400.6905191018. The cubic root of 864400603 is about 952.5878115896.

The spelling of 864400603 in words is "eight hundred sixty-four million, four hundred thousand, six hundred three".