678476533 has 8 divisors (see below), whose sum is σ = 775570752. Its totient is φ = 581424576.

The previous prime is 678476531. The next prime is 678476543. The reversal of 678476533 is 335674876.

It is a happy number.

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 678476533 - 2¹ = 678476531 is a prime.

It is a super-3 number, since 3×678476533³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678476531) 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, 39966 + ... + 54352.

It is an arithmetic number, because the mean of its divisors is an integer number (96946344).

Almost surely, 2^678476533 is an apocalyptic number.

It is an amenable number.

678476533 is a deficient number, since it is larger than the sum of its proper divisors (97094219).

678476533 is a wasteful number, since it uses less digits than its factorization.

678476533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21131.

The product of its digits is 2540160, while the sum is 49.

The square root of 678476533 is about 26047.5820950813. The cubic root of 678476533 is about 878.7087350676.

The spelling of 678476533 in words is "six hundred seventy-eight million, four hundred seventy-six thousand, five hundred thirty-three".