878408026 has 8 divisors (see below), whose sum is σ = 1349749044. Its totient is φ = 428491680.

The previous prime is 878407987. The next prime is 878408029. The reversal of 878408026 is 620804878.

It can be written as a sum of positive squares in 2 ways, for example, as 855855025 + 22553001 = 29255^2 + 4749^2 .

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

It is a super-3 number, since 3×878408026³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (878408029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5356065 + ... + 5356228.

Almost surely, 2^878408026 is an apocalyptic number.

878408026 is a deficient number, since it is larger than the sum of its proper divisors (471341018).

878408026 is a wasteful number, since it uses less digits than its factorization.

878408026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712336.

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 878408026 is about 29637.9490855896. The cubic root of 878408026 is about 957.7057577616.

The spelling of 878408026 in words is "eight hundred seventy-eight million, four hundred eight thousand, twenty-six".