678578541 has 8 divisors (see below), whose sum is σ = 905232000. Its totient is φ = 452155392.

The previous prime is 678578531. The next prime is 678578567. The reversal of 678578541 is 145875876.

It is a happy number.

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

It is not a de Polignac number, because 678578541 - 2²¹ = 676481389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678578501) 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, 50580 + ... + 62573.

It is an arithmetic number, because the mean of its divisors is an integer number (113154000).

Almost surely, 2^678578541 is an apocalyptic number.

It is an amenable number.

678578541 is a deficient number, since it is larger than the sum of its proper divisors (226653459).

678578541 is a wasteful number, since it uses less digits than its factorization.

678578541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115155.

The product of its digits is 1881600, while the sum is 51.

The square root of 678578541 is about 26049.5401302979. The cubic root of 678578541 is about 878.7527704049.

The spelling of 678578541 in words is "six hundred seventy-eight million, five hundred seventy-eight thousand, five hundred forty-one".