978474838 has 8 divisors (see below), whose sum is σ = 1601140680. Its totient is φ = 444761280.

The previous prime is 978474829. The next prime is 978474839. The reversal of 978474838 is 838474879.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978474839) 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, 22238043 + ... + 22238086.

It is an arithmetic number, because the mean of its divisors is an integer number (200142585).

Almost surely, 2^978474838 is an apocalyptic number.

978474838 is a deficient number, since it is larger than the sum of its proper divisors (622665842).

978474838 is a wasteful number, since it uses less digits than its factorization.

978474838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44476142.

The product of its digits is 10838016, while the sum is 58.

The square root of 978474838 is about 31280.5824434265. The cubic root of 978474838 is about 992.7728399874.

The spelling of 978474838 in words is "nine hundred seventy-eight million, four hundred seventy-four thousand, eight hundred thirty-eight".