678504801 has 32 divisors (see below), whose sum is σ = 1031869440. Its totient is φ = 393125184.

The previous prime is 678504797. The next prime is 678504803. The reversal of 678504801 is 108405876.

It is not a de Polignac number, because 678504801 - 2² = 678504797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 678504801.

It is not an unprimeable number, because it can be changed into a prime (678504803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121006 + ... + 126488.

It is an arithmetic number, because the mean of its divisors is an integer number (32245920).

Almost surely, 2^678504801 is an apocalyptic number.

It is an amenable number.

678504801 is a deficient number, since it is larger than the sum of its proper divisors (353364639).

678504801 is a wasteful number, since it uses less digits than its factorization.

678504801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 678504801 is about 26048.1247117715. The cubic root of 678504801 is about 878.7209383851.

The spelling of 678504801 in words is "six hundred seventy-eight million, five hundred four thousand, eight hundred one".